Difference between revisions of "Good mutations"

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This is a list of all of the '''good mutations''' which can be acquired. While most of these are useful to any character, some may in fact be significantly detrimental to some builds. Even so, they are included here because "good mutation" is a technical term in the game, not a qualitative judgment. Any of these can be acquired through any source of good mutations, such as a [[potion of beneficial mutation]].
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{{version021}}
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This is a list of all of the '''good mutations''' which can be acquired. While most of these are useful to any character, some may in fact be significantly detrimental to some builds. Even so, they are included here because "good mutation" is a technical term in the game, not a qualitative judgment. Any of these can be acquired through any source of good mutations, such as a [[potion of mutation]].
  
 
=Offensive=
 
=Offensive=
Some of these mutations will prevent your character from wearing items in certain equipment slots. While this penalty may outweigh the gain your character receives, bear in mind that races which cannot use those slots ([[ogre]]s, [[troll]]s, [[felid]]s, etc.) anyway lose nothing.
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Some of these mutations will prevent your character from wearing items in certain equipment slots. While this penalty may outweigh the gain your character receives, bear in mind that races which cannot use those slots ([[ogre]]s, [[troll]]s, [[felid]]s, etc.) lose nothing.
  
 
===Fangs===
 
===Fangs===
Grants an [[auxiliary attack|auxiliary]] [[Unarmed Combat]] bite attack. Deals (2*Rank+(Unarmed Combat/5)) damage, and stacks with [[Acidic Bite]]. At rank 3, lets you butcher [[corpse]]s with your face. [[Vampire]]s and [[felid]]s start at rank 3. This mutation is mutually exclusive with a [[Beak]].
+
{{:Fangs}}
{{flavour|1. You have sharp teeth.<br>2. You have very sharp teeth.<br>3. You have razor-sharp teeth.}}
 
  
 
===Beak===
 
===Beak===
Grants an [[auxiliary attack|auxiliary]] [[Unarmed Combat]] peck attack. [[Helmet]]s are prohibited. [[Tengu]] start with this. This mutation is mutually exclusive with [[Fangs]].
+
{{:Beak}}
{{flavour|You have a beak for a mouth.}}
 
  
 
===Claws===
 
===Claws===
Improves the damage of your [[Unarmed Combat]] fist attacks. Damage rises with rank. Wearing gloves negates the effects of this mutation; at rank 3, [[gloves]] are prohibited. [[Troll]]s start at rank 3, [[ghoul]]s at rank 1.  The [[felid]] mutation is technically separate but equivalent to rank 1. [[Octopode]]s cannot gain claws (as they have no hands).
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{{:Claws}}
{{flavour|1. You have sharp fingernails.<br>2. You have very sharp fingernails.<br>3. You have claws for hands.<br>Felids. Your paws have sharp claws.}}
 
  
 
===Horns===
 
===Horns===
Grants an [[auxiliary attack|auxiliary]] Unarmed Combat headbutt attack. Damage rises with rank. At any rank, [[helmet]]s are prohibited; at rank 3, all headgear is prohibited. [[Minotaur]]s start at rank 2. Transmuters that are not wearing helmets may temporarily give themselves Horns 2 with Beastly Appendage. This mutation is mutually exclusive with [[Antennae]]. [[Octopode]]s cannot gain horns (as they have no skulls).
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{{:Horns}}===Hooves=== <!-- This weird formatting was the only way I could get this page to render without there being extra white space in between these mutations. -->
{{flavour|1. You have a pair of small horns on your head.<br>2. You have a pair of horns on your head.<br>3. You have a pair of large horns on your head.}}
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{{:Hooves}}===Talons===
 
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{{:Talons}}
===Antennae===
 
Lets you detect any monsters within a certain radius of you, even if invisible or through walls - usefully, this includes [[mimic]]s. Any rank prohibits use of [[helmet]]s, and rank 3 prohibits use of any headgear. This mutation is mutually exclusive with [[Horns]].<br>Rank 1: 3 tile radius (including the player). Rank 2: 5 tile radius. Rank 3: 7 tiles, plus gives [[see invisible]].
 
{{flavour|1. You have a pair of small antennae on your head.<br>2. You have a pair of antennae on your head.<br>3. You have a pair of large antennae on your head.}}
 
 
 
===Hooves===
 
Grants an [[auxiliary attack|auxiliary]] [[Unarmed Combat]] kick attack. Damage rises with rank. Wearing [[boots]] negates the effects of this mutation; at rank 3, boots are prohibited. [[Centaur]]s start at rank 3. This mutation is mutually exclusive with [[Talons]]. Hybrid races or those with unusual body shapes ([[naga]]s, [[merfolk]], [[felid]]s, [[octopode]]s) cannot grow hooves.
 
{{flavour|1. You have large cloven feet.<br>2. You have hoof-like feet.<br>3. You have hooves in place of feet.}}
 
 
 
===Talons===
 
Grants an [[auxiliary attack|auxiliary]] [[Unarmed Combat]] kick attack. Damage rises with rank. Wearing [[boots]] negates the effects of this mutation; at rank 3, boots are prohibited. [[Tengu]] start at rank 3 with a unique description. [[Transmuter]]s who are not wearing boots may temporarily give themselves Talons 3 with [[Beastly Appendage]]. This mutation is mutually exclusive with [[Hooves]]. Hybrid races or those with unusual body shapes ([[centaur]]s, [[naga]]s, [[merfolk]], [[felid]]s, [[octopode]]s) cannot grow talons.
 
{{flavour|1. You have sharp toenails.<br>2. You have razor-sharp toenails.<br>3. You have claws for feet.<br> Tengu. You have talons in place of feet.}}
 
 
 
===Spit Poison===
 
Lets you [[spit poison]] as an ability. [[Naga]]s cannot get this mutation, because they naturally start with this ability. Instead, they may upgrade their innate ability to [[#Poison Breath|Poison Breath]]. Grey [[draconian]]s also cannot gain this mutation because they don't breathe.
 
{{flavour|1. You can spit poison.<br>2. You can spit moderately strong poison.<br>3. You can spit strong poison.}}
 
 
 
===Breathe Flames===
 
Lets you exhale a blast of flame as an ability. [[Dragon Form]] will temporarily give non-draconian characters Breathe Flames 3 (draconians will instead retain their natural [[breath weapon]]). Grey [[draconian]]s cannot gain this mutation, as they don't breathe, and red draconians already have a fiery breath weapon.
 
{{flavour|1. You can breathe flames.<br>2. You can breathe fire.<br>3. You can breathe blasts of fire.}}
 
  
 
=Defensive=
 
=Defensive=
 
===Tough Skin===
 
===Tough Skin===
Gives you +1 AC per rank. [[Ogre]]s start at rank 1, [[troll]]s start at rank 2, and [[centaur]]s start at rank 3.
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{{:Tough Skin}}
{{flavour|1. You have tough skin.<br>2. You have very tough skin.<br>3. You have extremely tough skin.}}
 
  
 
===Shaggy Fur===
 
===Shaggy Fur===
Gives you +1 AC and 20% [[acid]] splash damage reduction per rank. Rank 3 also gives you rC+. [[Troll]]s and [[felid]]s start at rank 1; felids then gain rank 2 at XL 6 and rank 3 at XL 12.
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{{:Shaggy Fur}}
{{flavour|1. You are covered in fur.<br>2. You are covered in thick fur.<br>3. Your thick and shaggy fur keeps you warm.}}
 
  
 
===Camouflage===
 
===Camouflage===
Gives you +Stealth. The amount of stealth gained rises with rank (+40 per rank). [[Octopode]]s start at rank 1. This mutation is mutually exclusive with [[Jiyva mutations#Translucent Skin|Translucent Skin]].
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{{:Camouflage}}
{{flavour|1. Your skin changes colour to match your surroundings.<br>2. Your skin blends seamlessly with your surroundings.<br>3. Your skin perfectly mimics your surroundings.}}
 
  
 
=Resistances=
 
=Resistances=
===Heat Resistance===
+
===Fire Resistance===
Gives bonuses to rF (rF+, rF++, rF+++).
+
{{:Heat Resistance}}
{{flavour|1. Your flesh is heat resistant.<br>2. Your flesh is very heat resistant.<br>3. Your flesh is almost immune to the effects of heat.}}
 
  
 
===Cold Resistance===
 
===Cold Resistance===
Gives bonuses to rC (rC+, rC++, rC+++).
+
{{:Cold Resistance (mutation)}}
{{flavour|1. Your flesh is cold resistant.<br>2. Your flesh is very cold resistant.<br>3. Your flesh is almost immune to the effects of cold.}}
 
  
===Shock Resistance===
+
===Electricity Resistance===
Give you rElec.
+
{{:Shock Resistance}}
{{flavour|You are resistant to electric shocks.}}
 
  
 
===Poison Resistance===
 
===Poison Resistance===
Gives you rPois. [[Naga]]s start with this.
+
{{:Poison Resistance (mutation)}}
{{flavour|Your system is resistant to poisons.}}
 
  
 
===Magic Resistance===
 
===Magic Resistance===
Gives you +30 [[MR]] per rank.
+
{{:Magic Resistance (mutation)}}
{{flavour|1. You are resistant to hostile enchantments.<br>2. You are highly resistant to hostile enchantments.<br>3. You are extremely resistant to the effects of hostile enchantments.}}
 
  
 
===Clarity===
 
===Clarity===
Gives you [[clarity]].
+
{{:Clarity (mutation)}}
{{flavour|You possess an exceptional clarity of mind.}}
 
  
 
===Mutation Resistance===
 
===Mutation Resistance===
Gives you +66.6% resistance to further mutations at ranks 1 and 2, 100% at rank 3. Mutation removal fails 50% of the time at rank 2, 100% at rank 3. Rank 3 of the mutation can only be removed by [[Zin]]. [[Halfling]]s start at rank 1.
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{{:Mutation Resistance (mutation)}}
{{flavour|1. You are somewhat resistant to further mutation.<br>2. You are somewhat resistant to both further mutation and mutation removal.<br>3. Your current mutations are irrevocably fixed, and you can mutate no more.}}
 
  
 
=Movement=
 
=Movement=
 
===Blink===
 
===Blink===
Lets you blink as an ability, which costs 5% of your maximum HP. Rank 1 has a high failure rate, while ranks 2 and 3 are more reliable.
+
{{:Blink (mutation)}}
{{flavour|1. You can translocate small distances at will.<br>2. You are good at translocating small distances at will.<br>3. You can easily translocate small distances at will.}}
 
 
 
===Teleport Control===
 
Gives you control over [[teleport]]s and limited control over [[blink]]s.
 
{{flavour|You can control translocations.}}
 
 
 
===Fast===
 
Improves your [[movement speed]] (-2 at rank 1, -3 at rank 2, -4 at rank 3). [[Felid]]s start at rank 1, [[centaur]]s start at rank 2, and [[spriggan]]s start at rank 3.
 
{{flavour|1. You cover ground quickly.<br>2. You cover ground very quickly.<br>3. You cover ground extremely quickly.}}
 
  
 
=Perception=
 
=Perception=
 
===Acute Vision===
 
===Acute Vision===
Lets you [[See Invisible]]. [[Naga]]s, [[spriggan]]s, [[vampire]]s, and [[felid]]s start with this.
+
{{:Acute Vision}}
{{flavour|You have supernaturally acute eyesight.}}
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 +
===Antennae===
 +
{{:Antennae}}
  
 
===Passive Mapping===
 
===Passive Mapping===
Shows you random tiles outside your [[LOS]]. More ranks shows you more tiles. [[deep dwarf|Deep Dwarves]] start at rank 1, then gain rank 2 at level 9 and rank 3 at level 18. Worshipers of [[Ashenzari]] eventually receive a similar ability.
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{{:Passive Mapping}}
{{flavour|1. You passively map a small area around you.<br>2. You passively map the area around you.<br>3. You passively map a large area around you.}}
 
 
 
=Diet=
 
===Carnivorous===
 
Each rank increases the [[nutrition]] gained from eating meat while reducing that of vegetation. With rank 1 you can eat raw meat until Full, with rank 2 until Very Full and with rank 3 at any time until engorged. Rank 3 prohibits eating vegetation. [[Ghoul]]s, [[felid]]s, and [[kobold]]s start at rank 3.
 
{{flavour|1. Your digestive system is specialised to digest meat.<br>2. Your digestive system is highly specialised to digest meat.<br> 3. You are carnivorous and can eat meat at any time.}}
 
 
 
===Slow Metabolism===
 
Reduces base nutrition consumption: -1 at rank 1 and -2 at rank 2. [[Halfling]]s and [[felid]]s start at rank 1, [[spriggan]]s start at rank 2. This mutation is mutually exclusive with [[#Regeneration|Regeneration]].
 
{{flavour|1. You have a slow metabolism.<br>2. You need consume almost no food.}}
 
  
 
=General=
 
=General=
 
===Evolution===
 
===Evolution===
Gives you further mutations over time. Whenever it triggers, there is a 50/50 chance of you receiving either a good mutation or a random mutation (which means you are 3× more likely to receive good mutations than bad). Unlike other mutations, Evolution will eventually disappear on its own, though only after leaving many other mutations in its wake. Rank 2 increases the rate of evolution.
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{{:Evolution}}
{{flavour|1. You evolve.<br>2. You rapidly evolve.}}
 
  
 
===Wild Magic===
 
===Wild Magic===
Reduces the spell success rate of all your spells, but increases their spell power. More ranks increase the effect.
+
{{:Wild Magic (mutation)}}
{{flavour|1. Your spells are a little harder to cast, but a little more powerful.<br>2. Your spells are harder to cast, but more powerful.<br>3. Your spells are much harder to cast, but much more powerful.}}
 
  
 
===Improved Attributes===
 
===Improved Attributes===
Gives you +2 to an attribute per rank (MAX: +4). Potions of gain "x" (where "x" is strength, dexterity, or intelligence) grant increasing levels of this mutation. (Coded in-game as "Strong", "Clever", and "Agile" for increased STR, INT, and DEX, respectively.)
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{{:Improved Attributes}}
{{flavour|Your muscles are strong.<br>Your mind is acute.<br>You are agile.}}
 
  
 
===Regeneration===
 
===Regeneration===
Increases your HP recovery rate. [[Troll]]s start at rank 2. [[Vampire]]s gain rank 1 at Full satiation, rank 2 at Alive. This mutation is mutually exclusive with [[#Slow Metabolism|Slow Metabolism]].
+
{{:Regeneration (mutation)}}
{{flavour|1. Your natural rate of healing is unusually fast.<br>2. You heal very quickly.<br>3. You regenerate.}}
 
  
 
===Robust===
 
===Robust===
Gives you +10% max HP per rank.
+
{{:Robust}}
{{flavour|1. You are robust.<br>2. You are very robust.<br>3. You are extremely robust.}}
 
  
 
===High MP===
 
===High MP===
Gives you +10% max MP per rank.
+
{{:High MP}}
{{flavour|1. You have an increased reservoir of magic.<br>2. You have a considerably increased reservoir of magic.<br>3. You have a greatly increased reservoir of magic.}}
 
 
 
===Strong Stiff===
 
Each rank grants +1 STR and -1 DEX. This mutation is mutually exclusive with Flexible Muscles.
 
{{flavour|1. Your muscles are strong, but stiff.<br>2. Your muscles are very strong, but stiff.<br>3. Your muscles are extremely strong, but stiff.}}
 
 
 
===Flexible Weak===
 
Each rank grants +1 DEX and -1 STR. This mutation is mutually exclusive with Stiff Muscles.
 
{{flavour|1. Your muscles are flexible, but weak.<br>2. Your muscles are very flexible, but weak.<br>3. Your muscles are extremely flexible, but weak.}}
 
  
 
=Scales=
 
=Scales=
[[Draconian]] scales function differently from those below: their AC increases as they level, and they may gain other resistances besides their scales. As such, they cannot develop any of these mutations. As they grow, [[Demonspawn]] naturally receive three ranks of a single scales mutation unless they are a "monstrous" demonspawn. They may still gain scales through other means of mutation, but they can only gain scales that they would eventually get on their own.
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[[Draconian]] scales function differently from those below: their AC increases as they level, and they may gain other resistances besides their scales. As such, they cannot develop any of these mutations. As they level, non-"monstrous" [[demonspawn]] naturally receive three ranks of a single scales mutation. They may still gain scales through other means of mutation, but only in the category that they would eventually get on their own.
  
No character can have more than three total ranks of scales-type mutations at a time (e.g. if you already have Molten Scales 2, you could develop Large Bony Plates 1, but not Large Bony Plates 2). A [[Naga]]'s serpentine lower half counts as one rank of a seperate scales mutation, so they can only have up to two ranks of other types of scales at a time.
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No character can have more than three total ranks of scales-type mutations at a time (e.g. if you already have Molten Scales 2, you could develop Large Bony Plates 1, but not Large Bony Plates 2). A [[naga]]'s serpentine lower half counts as one rank of a separate scales mutation, so they can only have up to two ranks of other types of scales at a time.
  
 
===Molten Scales===
 
===Molten Scales===
Rank 1: +1 [[AC]]. Rank 2: +3 AC, -1 EV. Rank 3: +4 AC, -1 EV, rF+.
+
{{:Molten Scales}}
{{flavour|1. You are partially covered in molten scales.<br>2. You are mostly covered in molten scales.<br>3. You are completely covered in molten scales.}}
 
  
 
===Icy Blue Scales===
 
===Icy Blue Scales===
Rank 1: +1 AC. Rank 2: +3 AC, -1 EV. Rank 3: +4 AC, -1 EV, rC+.
+
{{:Icy Blue Scales}}
{{flavour|1. You are partially covered in icy blue scales.<br>2. You are mostly covered in icy blue scales.<br>3. You are completely covered in icy blue scales.}}
 
  
 
===Slimy Green Scales===
 
===Slimy Green Scales===
Rank 1: +2 AC. Rank 2: +3 AC. Rank 3: +4 AC, rPois.
+
{{:Slimy Green Scales}}
{{flavour|1. You are partially covered in slimy green scales.<br>2. You are mostly covered in slimy green scales.<br>3. You are completely covered in slimy green scales.}}
 
  
 
===Thin Metallic Scales===
 
===Thin Metallic Scales===
Rank 1: +2 AC. Rank 2: +3 AC. Rank 3: +4 AC, rElec.
+
{{:Thin Metallic Scales}}
{{flavour|1. You are partially covered in thin metallic scales.<br>2. You are mostly covered in thin metallic scales.<br>3. You are completely covered in thin metallic scales.}}
 
  
 
===Yellow Scales===
 
===Yellow Scales===
Rank 1: +2 AC. Rank 2: +3 AC. Rank 3: +4 AC, rAcid+.
+
{{:Yellow Scales}}
{{flavour|1. You are partially covered in yellow scales.<br>2. You are mostly covered in yellow scales.<br>3. You are completely covered in yellow scales.}}
 
 
 
===Rough Black Scales===
 
Rank 1: +4 AC, -1 DEX. Rank 2: +7 AC, -2 DEX. Rank 3: +10 AC, -3 DEX.
 
{{flavour|1. You are partially covered in rough black scales.<br>2. You are mostly covered in rough black scales.<br>3. You are completely covered in rough black scales.}}
 
  
 
===Rugged Brown Scales===
 
===Rugged Brown Scales===
Rank 1: +1 AC, +3% HP. Rank 2: +2 AC, +5% HP. Rank 3: +3 AC, +7% HP.
+
{{:Rugged Brown Scales}}
{{flavour|1. You are partially covered in rugged brown scales.<br>2. You are mostly covered in rugged brown scales.<br>3. You are completely covered in rugged brown scales.}}
 
  
 
===Iridescent Scales===
 
===Iridescent Scales===
Rank 1: +4 AC. Rank 2: +6 AC. Rank 3: +8 AC.
+
{{:Iridescent Scales}}
{{flavour|1. You are partially covered in iridescent scales.<br>2. You are mostly covered in iridescent scales.<br>3. You are completely covered in iridescent scales.}}
 
  
 
===Large Bone Plates===
 
===Large Bone Plates===
Rank 1: +2 AC, +2 [[SH]]. Rank 2: +3 AC, +4 SH. Rank 3: +4 AC, +6 SH.
+
{{:Large Bone Plates}}
{{flavour|1. You are partially covered in large bone plates.<br>2. You are mostly covered in large bone plates.<br>3. You are completely covered in large bone plates.}}
 
  
 
===Repulsion Field===
 
===Repulsion Field===
Gives increasing bonuses to EV (+2, +3, +4). At rank 3, permanently gives you the effect of [[Repel Missiles]].
+
{{:Repulsion Field}}
{{flavour|1. You are surrounded by a mild repulsion field.<br>2. You are surrounded by a moderate repulsion field.<br>3. You are surrounded by a strong repulsion field.}}
 
  
 
===Thin Skeletal Structure===
 
===Thin Skeletal Structure===
Rank 1: +2 DEX, +25 [[Stealth]]. Rank 2: +4 DEX, -1 STR, +50 Stealth. Rank 3: +6 DEX, -2 STR, +75 Stealth.
+
{{:Thin Skeletal Structure}}
{{flavour|1. You have a somewhat thin skeletal structure.<br>2. You have a moderately thin skeletal structure.<br>3. You have an unnaturally thin skeletal structure.}}
 
  
 
=Species exclusive=
 
=Species exclusive=
Line 199: Line 123:
  
 
===Poison Breath===
 
===Poison Breath===
Exclusive to [[naga]]s as an upgrade to their [[#Poison Spit|Poison Spit]] ability. Lets you exhale poison clouds at enemies.
+
{{:Poison Breath}}
{{flavour|You can exhale a cloud of poison.}}
 
  
 
===Stinger===
 
===Stinger===
Exclusive to [[naga]]s and [[draconian]]s. Upgrades your [[auxiliary attack|tail-slap attack]], increasing damage and adding the [[Venom]] [[brand]]. Damage and [[poison]] strength rise with rank. Green draconians develop rank 1 of this mutation at level 14 (and may gain more via further mutation).
+
{{:Stinger}}
{{flavour|1. Your tail ends in a poisonous barb.<br>2. Your tail ends in a sharp poisonous barb.<br>3. Your tail ends in a wickedly sharp and poisonous barb.}}
 
  
 
===Big Wings===
 
===Big Wings===
Exclusive to [[draconian]]s. Grants an ability which gives [[flight]] until activated again. Black draconians naturally develop this mutation at level 14.
+
{{:Big Wings}}
{{flavour|Your wings are large and strong.}}
 
  
 
===Tentacle Spike===
 
===Tentacle Spike===
Exclusive to [[octopode]]s. Upgrades your [[auxiliary attack|tentacle-slap attack]], increasing its damage. Additional damage rises with rank. Octopodes may also temporarily induce rank 3 of this mutation with [[Beastly Appendage]].
+
{{:Tentacle Spike}}
{{flavour|1. One of your tentacles bears a spike.<br>2. One of your tentacles bears a nasty spike.<br>3. One of your tentacles bears a large vicious spike.}}
+
 
 +
===Strong Legs===
 +
{{:Strong Legs}}
  
 
=See Also=
 
=See Also=
Line 219: Line 142:
 
*[[Jiyva mutations]]
 
*[[Jiyva mutations]]
  
=History=
+
==History==
In [[0.13]] the Teleport Control, Strong Stiff and Flexible Weak mutations will be removed; [[#Improved_Attributes|Improved Attributes]] will only have two levels, and each level gives you +2 to an attribute; and a new mutation called “Fumes” will be added. This mutation has two levels and causes you to emit smoke at random intervals.
+
Prior to [[0.14]] the Fast mutation was available as a random mutation and the Antennae mutation did not show invisible enemy indicators outside range 3 & 5 at ranks 1 & 2.
 +
 
 +
In [[0.13]], the [[Teleport Control]], [[Strong Stiff]], and [[Flexible Weak]] mutations were removed, and Improved Attributes was changed to only have 2 levels, each of which granted +2 to an attribute.
  
 
[[Category:Intrinsic]]
 
[[Category:Intrinsic]]
 
[[Category:Mutations]]
 
[[Category:Mutations]]
 +
[[Category:Good Mutations]]
 
[[Category:List]]
 
[[Category:List]]
[[Category:Crystal Ball Articles]]
 

Revision as of 08:18, 22 June 2018

Version 0.21: This article may not be up to date for the latest stable release of Crawl.

This is a list of all of the good mutations which can be acquired. While most of these are useful to any character, some may in fact be significantly detrimental to some builds. Even so, they are included here because "good mutation" is a technical term in the game, not a qualitative judgment. Any of these can be acquired through any source of good mutations, such as a potion of mutation.

Offensive

Some of these mutations will prevent your character from wearing items in certain equipment slots. While this penalty may outweigh the gain your character receives, bear in mind that races which cannot use those slots (ogres, trolls, felids, etc.) lose nothing.

Fangs

Rank Effect Flavor
1 Auxiliary bite attack. You have sharp teeth.
2 Improved auxiliary bite attack. You have very sharp teeth.
3 Superior auxiliary bite attack. You have razor-sharp teeth.

Damage: 1 + (2 * rank)
Chance: 40% * (30 + XL)/59 per melee attack
Having Acidic Bite adds 4 base damage and 2d4 acid damage.
If Vine Stalker, add XL/3 damage, chance increased to 100% * (30 + XL)/59, and grants antimagic.

Species notes: Vampires and Felids start with rank 3. Gnolls have rank 1.
Vine Stalkers start with rank 2 and upgrade to rank 3 at XL 8.

Good mutation, Demonspawn mutation

Beak

Rank Effect Flavor
1 Auxiliary peck attack. Prohibits helmet. You have a beak for a mouth.

Damage: 6
Chance: 66% * (30 + XL)/60 per melee attack

Species notes: Tengu start with Beak.

Good mutation

Claws

Rank Effect Flavor
1 +2 unarmed base damage. Negated by gloves. You have sharp fingernails.
2 +4 unarmed base damage. Negated by gloves. You have very sharp fingernails.
3 +6 unarmed base damage. Prohibits gloves. You have claws for hands.

Using Unarmed Combat with level 3 Claws will decapitate hydra heads.

Species notes: Ghouls start with rank 1 and Trolls start with rank 3.
Octopodes cannot gain claws.

Good mutation, Demonspawn mutation


Horns

Rank Effect Flavor
1 Auxiliary headbutt attack. Prohibits helmets. You have a pair of small horns on your head.
2 Improved auxiliary headbutt attack. Prohibits helmets. You have a pair of horns on your head.
3 Superior auxiliary headbutt attack. Prohibits all headgear. You have a pair of large horns on your head.

Damage: 5 + (3 * rank)
Chance: 66% * (30 + XL)/59 per melee attack
Minotaurs may retaliate against enemies with headbutts.

Species notes: Minotaurs start with rank 2, and Oni start with rank 1. Demonspawn can gain horns as a body slot option. Octopodes cannot gain horns.

Good mutation, Demonspawn mutation

Hooves

Rank Effect Flavor
1 Auxiliary kick attack. Negated by boots. You have large cloven feet.
2 Improved auxiliary kick attack. Negated by boots. You have hoof-like feet.
3 Superior auxiliary kick attack. Prohibits boots. You have hooves in place of feet.

Damage: 5 + (5/3 * rank)
Chance: 100% * (30 + XL)/59 per melee attack

Species notes: Demonspawn can gain hooves as a body slot option. Nagas, merfolk, felids, and octopodes cannot gain hooves.

Good mutation, Demonspawn mutation

Talons

Rank Effect Flavor
1 Auxiliary kick attack. Negated by boots. You have sharp toenails.
2 Improved auxiliary kick attack. Negated by boots. You have razor-sharp toenails.
3 Superior auxiliary kick attack. Prohibits boots. You have claws for feet.

Species notes: Tengu start at rank 3. Demonspawn can gain talons as a body slot option.
Nagas, merfolk, felids, and octopodes cannot gain talons.

Good mutation, Demonspawn mutation

Defensive

Tough Skin

Rank Effect Flavor
1 +1 AC You have tough skin.
2 +2 AC You have very tough skin.
3 +3 AC You have extremely tough skin.

Species notes: Oni and trolls start at rank 1.

Good mutation

Shaggy Fur

Rank Effect Flavor
1 +1 AC You are covered in fur.
2 +2 AC You are covered in thick fur.
3 +3 AC, rC+ Your thick and shaggy fur keeps you warm.

Species notes: Trolls and felids start at rank 1; felids gain rank 2 at XL 6 and rank 3 at XL 12.

Good mutation

Camouflage

Rank Effect Flavor
1 +40 Stealth Your skin changes colour to match your surroundings.
2 +80 Stealth Your skin blends seamlessly with your surroundings.
3 +120 Stealth Your skin perfectly mimics your surroundings.

Species notes: Octopodes start at rank 1.

Good mutation

Resistances

Fire Resistance

Rank Effect Flavor
1 rF+ Your flesh is heat resistant.
2 rF++ Your flesh is very heat resistant.
3 rF+++ Your flesh is almost immune to the effects of heat.

Species notes: Red draconians develop rank 1 upon changing color.

Good mutation

Cold Resistance

Rank Effect Flavor
1 rC+ Your flesh is cold resistant.
2 rC++ Your flesh is very cold resistant.
3 rC+++ Your flesh is almost immune to the effects of cold.

Species notes: White draconians develop rank 1 upon changing color.

Good mutation

Electricity Resistance

Rank Effect Flavor
1 rElec You are resistant to electric shocks.

Species notes: Gargoyles start with rank 1. Black draconians develop rank 1 upon changing color.

Good mutation

Poison Resistance

Rank Effect Flavor
1 rPois Your system is resistant to poisons.

Species notes: Nagas start with rank 1. Green draconians develop rank 1 upon changing color. Gargoyles are instead immune to poison.

Good mutation

Magic Resistance

Rank Effect Flavor
1 Willpower+ You are resistant to hostile enchantments.
2 Willpower++ You are highly resistant to hostile enchantments.
3 Willpower+++ You are extremely resistant to the effects of hostile enchantments.

Good mutation

Clarity

Rank Effect Flavor
1 Clarity You possess an exceptional clarity of mind.

Good mutation

Mutation Resistance

Rank Effect Flavor
1 66.6% resistance to further mutation. You are somewhat resistant to further mutation.
2 66.6% resistance to further mutation. Mutation removal fails 50%. You are somewhat resistant to both further mutation and mutation removal.
3 100% resistance to further mutation. Mutation removal fails 100%. You are almost entirely resistant to both further mutation and mutation removal.

This mutation stacks with other sources of mutation protection such as Zin and the hat of the Alchemist multiplicatively.
Rank 3 of the mutation can only be removed by Jiyva, Xom (retribution or not), Zin (retribution), or by magical contamination.

Species notes: Prior to their 0.27 removal, Halflings started at rank 1.

Good mutation

Movement

Blink

Rank Effect Flavor
1 Gain the Blink ability. Each use inflicts damage equal to 5% of your max HP. You can translocate small distances at will.

Good mutation

Perception

Acute Vision

Rank Effect Flavor
1 Grants see invisible. You have supernaturally acute eyesight.

Species notes: Nagas, spriggans, vampires, and felids start with this.

Good mutation

Antennae

Rank Effect Flavor
1 Shows the location of all invisible enemies in line of sight. Detects all monsters within 3 tiles, even through walls or opaque clouds. Prohibits helmets. You have a pair of small antennae on your head.
2 Range increases to 5 tiles. Prohibits helmets. You have a pair of antennae on your head.
3 Range increases to 7 tiles. Grants see invisible. Prohibits all headgear. You have a pair of large antennae on your head.

When playing in console mode, creatures not in line of sight are revealed as { or { glyphs, depending on whether the entity is hostile or friendly. In tile mode, they appear as icons which similarly indicate hostility. Mimics will be identified as soon as they enter your antennae range.

Species notes: Formicids start with rank 3. Demonspawn can gain antennae as a body slot option.

Good mutation, Demonspawn mutation

Passive Mapping

Rank Effect Flavor
1 Reveal random tiles outside LOS You passively map a small area around you.
2 Reveal more random tiles outside LOS You passively map the area around you.
3 Reveal many random tiles outside LOS You passively map a large area around you.

Good mutation

General

Evolution

Rank Effect Flavor
1 Gain mutations until trait expires. You have hidden genetic potential.
2 Same as previous level, though lasts longer. You have great hidden genetic potential.

Triggers about once per XL, providing another good mutation. Every two activations, it reduces its level by one.
Changed in 0.28, see the Evolution page for more details.

Good mutation


Wild Magic

Rank Effect Flavor
1 Spell Power+, Spell Success- Your spells are a little harder to cast, but a little more powerful.
2 Spell Power++, Spell Success-- Your spells are harder to cast, but more powerful.
3 Spell Power+++, Spell Success--- Your spells are much harder to cast, but much more powerful.
Each level gives +30% (additively stacked, then multiplied) to raw spellpower and +4% (additive) to raw spell failure rate.

Generally, you will get less than +30% actual power. You will get less than +4% failure if your failure is already low (< 8%), but slightly more if your failure is high.

Good mutation

Improved Attributes

Rank Effect Flavor
1 +4 to STR, INT or DEX
-1 to the other two stats.
Your muscles are strong.
Your mind is acute.
You are agile.
2 +8 to STR, INT or DEX
-2 to the other stats
Your muscles are very strong.
Your mind is very acute.
You are very agile.

It's possible to gain this mutation for multiple different stats, but each stat may have up to 2 levels.

Good mutation


Regeneration

Rank Effect Flavor
1 HP regeneration rate +0.8 HP/turn Your natural rate of healing is unusually fast.
2 HP regeneration rate +1.6 HP/turn You heal very quickly.
3 HP regeneration rate +2.4 HP/turn You regenerate.

Each level healed 1 HP/turn in 0.27, and 0.4HP/turn prior.
Excludes Slow Metabolism prior to 0.26.

Species notes: Trolls start at rank 1. Vine Stalkers gain rank 1 at XL 4.

Good mutation

Robust

Rank Effect Flavor
1 +10% max HP You are robust.
2 +20% max HP You are very robust.
3 +30% max HP You are extremely robust.

Good mutation, Demonspawn mutation

High MP

Rank Effect Flavor
1 +10% max MP You have an increased reservoir of magic.
2 +20% max MP You have a considerably increased reservoir of magic.
3 +30% max MP You have a greatly increased reservoir of magic.

Species notes: Demigods start at rank 1.

Good mutation

Scales

Draconian scales function differently from those below: their AC increases as they level, and they may gain other resistances besides their scales. As such, they cannot develop any of these mutations. As they level, non-"monstrous" demonspawn naturally receive three ranks of a single scales mutation. They may still gain scales through other means of mutation, but only in the category that they would eventually get on their own.

No character can have more than three total ranks of scales-type mutations at a time (e.g. if you already have Molten Scales 2, you could develop Large Bony Plates 1, but not Large Bony Plates 2). A naga's serpentine lower half counts as one rank of a separate scales mutation, so they can only have up to two ranks of other types of scales at a time.

Molten Scales

Rank Effect Flavor
1 +2 AC You are partially covered in molten scales.
2 +3 AC You are mostly covered in molten scales.
3 +4 AC, rF+ You are completely covered in molten scales.

Good mutation, Demonspawn mutation

Icy Blue Scales

Rank Effect Flavor
1 +2 AC You are partially covered in icy blue scales.
2 +3 AC You are mostly covered in icy blue scales.
3 +4 AC, rC+ You are completely covered in icy blue scales.

Good mutation, Demonspawn mutation

Slimy Green Scales

Rank Effect Flavor
1 +2 AC You are partially covered in slimy green scales.
2 +3 AC You are mostly covered in slimy green scales.
3 +4 AC, rPois You are completely covered in slimy green scales.

Good mutation, Demonspawn mutation

Thin Metallic Scales

Rank Effect Flavor
1 +2 AC You are partially covered in thin metallic scales.
2 +3 AC You are mostly covered in thin metallic scales.
3 +4 AC, rElec You are completely covered in thin metallic scales.

Good mutation, Demonspawn mutation

Yellow Scales

Rank Effect Flavor
1 +2 AC You are partially covered in yellow scales.
2 +3 AC You are mostly covered in yellow scales.
3 +4 AC, rCorr You are completely covered in yellow scales.

Good mutation, Demonspawn mutation

Rugged Brown Scales

Rank Effect Flavor
1 +1 AC, +3% HP You are partially covered in rugged brown scales.
2 +2 AC, +5% HP You are mostly covered in rugged brown scales.
3 +3 AC, +7% HP You are completely covered in rugged brown scales.

Good mutation, Demonspawn mutation

Iridescent Scales

Rank Effect Flavor
1 +2 AC You are partially covered in iridescent scales.
2 +4 AC You are mostly covered in iridescent scales.
3 +6 AC You are completely covered in iridescent scales.

Good mutation

Large Bone Plates

Rank Effect Flavor
1 +4 SH You are partially covered in large bone plates.
2 +6 SH You are mostly covered in large bone plates.
3 +8 SH You are completely covered in large bone plates.

Good mutation, Demonspawn mutation

Repulsion Field

Rank Effect Flavor
1 +2 EV You are surrounded by a mild repulsion field.
2 +3 EV You are surrounded by a moderate repulsion field.
3 +4 EV, Repel Missiles You are surrounded by a strong repulsion field.

Prior to 0.19, the EV bonus applied even when paralysed, sleeping, etc.

Good mutation, Demonspawn mutation

Thin Skeletal Structure

Rank Effect Flavor
1 +2 DEX, +25 Stealth You have a somewhat thin skeletal structure.
2 +4 DEX, +50 Stealth You have a moderately thin skeletal structure.
3 +6 DEX, +75 Stealth You have an unnaturally thin skeletal structure.

Good mutation, Demonspawn mutation

In earlier versions of Crawl, this mutation also reduced strength by 1 per rank.

Species exclusive

These mutations may only be acquired by certain species.

Poison Breath

Rank Effect Flavor
1 Grants the Spit Poison ability. You can spit poison.
2 Upgrades to Breathe Poison. You can exhale a cloud of poison.

Species notes: Exclusve to Nagas, who start at level 1.

Good mutation

Stinger

Rank Effect Flavor
1 Adds damage and Venom to auxiliary tail slap. Your tail ends in a poisonous barb.
2 Adds more damage to auxiliary tail slap. Your tail ends in a sharp poisonous barb.
3 Adds most damage to auxiliary tail slap. Your tail ends in a wickedly sharp and poisonous barb.

Damage: 6 + (4 if you have Armoured Tail) + (2 * rank)
Chance: 50% * (30 + XL)/59 per melee attack

Species notes: Exclusive to Nagas, Armataurs, and Draconians, who can get this randomly.
Green draconians gain rank 1 at XL14 (and may gain more).

Good mutation

Big Wings

Rank Effect Flavor
1 You now fly permanently. You have big, strong wings, capable of bearing you through the air.

Prior to 0.27, flight could be toggled on or off.
Prior to 0.17, the flight granted by this mutation was temporary if it wasn't from your species.

Species notes: Exclusive to draconians and gargoyles.
Black draconians and gargoyles naturally develop it at XL 14, though other draconians can acquire it as a random mutation.

Good mutation

Tentacle Spike

Rank Effect Flavor
1 Adds damage to auxiliary tentacle slap. One of your tentacles bears a spike.
2 Adds more damage to auxiliary tentacle slap. One of your tentacles bears a nasty spike.
3 Adds most damage to auxiliary tentacle slap. One of your tentacles bears a large vicious spike.

Damage: 5 + rank
Chance: 100% * (30 + XL)/59 per melee attack

Species notes: Exclusive to octopodes. Octopodes may also temporarily induce rank 3 of this mutation with Beastly Appendage.

Good mutation

Strong Legs

Rank Effect Flavor
1 Allows you to hop over obstacles.
You may target a tile up to four tiles away, but you may land anywhere within two tiles of that space.
After hopping, you may not hop again until you have spent time without moving.
You can hop short distances.
2 Extends the range of your hop to six tiles. You can hop long distances.

Species notes: Exclusive to barachim.

Good mutation

See Also

History

Prior to 0.14 the Fast mutation was available as a random mutation and the Antennae mutation did not show invisible enemy indicators outside range 3 & 5 at ranks 1 & 2.

In 0.13, the Teleport Control, Strong Stiff, and Flexible Weak mutations were removed, and Improved Attributes was changed to only have 2 levels, each of which granted +2 to an attribute.