Good mutations

Here is a list of all the good mutations you can acquire. See bad mutations for the other sort, and demonspawn mutations for the specific sets of mutations that demonspawn may gain through leveling up.

Offensive

Fangs

Grants an auxiliary Unarmed Combat bite attack. Deals (2*Rank+(Unarmed Combat/5)) damage, and stacks with Acidic Bite. At rank 3, lets you butcher corpses with your face. Vampires and felids start at rank 3.

1. You have sharp teeth. 2. You have very sharp teeth. 3. You have razor-sharp teeth.

Poison Spit

Lets you spit poison as an ability. Nagas can't get this mutation, because they already have this ability. Instead, they may upgrade their intrinsic breath weapon to Poison Breath.

1. You can spit poison. 2. You can spit moderately strong poison. 3. You can spit strong poison.

Fire Breath

Lets you exhale a blast of flame as an ability. Dragon Form will temporarily give non-draconian characters Fire Breath 3 (Dragon Form draconians will instead retain their natural breath weapon).

1. You can breathe flames. 2. You can breathe fire. 3. You can breathe blasts of fire.

Defensive

Tough Skin

Gives you +1 AC per rank. Ogres start at rank 1, trolls start at rank 2, and centaurs start at rank 3.

1. You have tough skin. 2. You have very tough skin. 3. You have extremely tough skin.

Fur

Gives you +1 AC and 20% acid splash damage reduction per rank. Rank 3 also gives you rC+. Trolls and felids start at rank 1, felids gaining rank 2 at XL 6 and rank 3 at XL 12.

1. You are covered in fur. 2. You are covered in thick fur. 3. Your thick and shaggy fur keeps you warm.

Camouflage

Gives you +Stealth.

Your skin changes colour to match your surroundings.

Resistances

Fire Resistance

Gives bonuses to rF (rF+, rF++, rF+++).

1. Your flesh is heat resistant. 2. Your flesh is very heat resistant. 3. Your flesh is almost immune to the effects of heat.

Cold Resistance

Gives bonuses to rC (rC+, rC++, rC+++).

1. Your flesh is cold resistant. 2. Your flesh is very cold resistant. 3. Your flesh is almost immune to the effects of cold.

Insulation

Give you rElec.

You are resistant to electric shocks.

Poison Resistance

Gives you rPois. Nagas start with this.

Your system is resistant to poisons.

Magic Resistance

Gives you +30 MR per rank.

1. You are resistant to hostile enchantments. 2. You are highly resistant to hostile enchantments. 3. You are extremely resistant to the effects of hostile enchantments.

Clarity

Gives you Clarity.

You possess an exceptional clarity of mind.

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. Halflings start at rank 1.

1. You are somewhat resistant to further mutation. 2. You are somewhat resistant to both further mutation and mutation removal. 3. Your current mutations are irrevocably fixed, and you can mutate no more.

Movement

Blink

Lets you blink as an ability. ("You feel jittery.") Rank 1 has a high failure rate, while ranks 2 and 3 are more reliable. At rank 3, you blink instantaneously.

1. You can translocate small distances at will. 2. You are good at translocating small distances at will. 3. You can easily translocate small distances at will.

Teleport Control

Gives you control over teleports and limited control over blinks.

You can control translocations.

Speed

Improves your movement speed (-2 speed, -3, -4). Felids start at rank 1, Centaurs start at rank 2, and spriggans start at rank 3.

1. You cover ground quickly. 2. You cover ground very quickly. 3. You cover ground extremely quickly.

Perception

See Invisible

Lets you See Invisible. ("Your vision sharpens.") Nagas, spriggans, vampires, and felids start with this.

You have supernaturally acute eyesight.

Sense Surroundings

Shows you random tiles outside your LOS. More ranks shows you more tiles. Deep dwarves start at rank 1 and gain more as they level.

1. You can sense your immediate surroundings. 2. You can sense your surroundings. 3. You can sense a large area of your surroundings.

Diet

Carnivore

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. Ghouls, felids, and kobolds start at rank 3.

1. Your digestive system is specialised to digest meat. 2. Your digestive system is highly specialised to digest meat. 3. You are carnivorous and can eat meat at any time.

Slow Metabolism

Reduces base nutrition consumption: -1 at rank 1, -2 at rank 2, -3 at rank 3 (but it must be always at least 1). Halflings and felids start at rank 1, and spriggans at rank 2. This mutation is mutually exclusive with Regeneration.

1. You have a slow metabolism. 2. You have a slow metabolism. 3. You need consume almost no food.

General

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.

1.You evolve. 2.You rapidly evolve.

Wild Magic

Reduces the spell success rate of all your spells, but increases their spell power. More ranks increases the effect.

1. Your spells are a little harder to cast, but a little more powerful. 2. Your spells are harder to cast, but more powerful. 3. Your spells are much harder to cast, but much more powerful..

Improved Attributes

Gives you +1 to an attribute per rank (MAX: +14). Potions of gain "x" (where "x" is strength, dexterity, or intelligence) grant increasing levels of this mutation.

Your muscles are strong. Your mind is acute. You are agile.

Regeneration

Increases your HP recovery rate. Trolls start at rank 2. Vampires gain rank 1 at Full satiation, rank 2 at Alive. This mutation is mutually exclusive with Slow Metabolism.

1. Your natural rate of healing is unusually fast. 2. You heal very quickly. 3. You regenerate.

Robust

Gives you +10% max HP per rank.

1. You are robust. 2. You are very robust. 3. You are extremely robust.

Energetic

Gives you +10% max MP per rank.

1. You have an increased reservoir of magic. 2. You have a considerably increased reservoir of magic. 3. You have a greatly increased reservoir of magic.

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.

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). Due to their hybrid nature, nagas can only have up to two ranks at a time.

Molten Scales

Rank 1: +1 AC. Rank 2: +2 AC, -1 EV. Rank 3: +3 AC, -1 EV, rF+.

1. You are partially covered in molten scales. 2. You are mostly covered in molten scales. 3. You are completely covered in molten scales.

Icy Blue Scales

Rank 1: +1 AC. Rank 2: +2 AC, -1 EV. Rank 3: +3 AC, -1 EV, rC+.

1. You are partially covered in icy blue scales. 2. You are mostly covered in icy blue scales. 3. You are completely covered in icy blue scales.

Slimy Green Scales

Rank 1: +1 AC. Rank 2: +2 AC, -1 EV. Rank 3: +3 AC, -2 EV, rPois.

1. You are partially covered in slimy green scales. 2. You are mostly covered in slimy green scales. 3. You are completely covered in slimy green scales.

Thin Metallic Scales

Rank 1: +1 AC. Rank 2: +2 AC. Rank 3: +3 AC, rElec.

1. You are partially covered in thin metallic scales. 2. You are mostly covered in thin metallic scales. 3. You are completely covered in thin metallic scales.

Yellow Scales

Rank 1: +1 AC. Rank 2: +2 AC, rAcid+. Rank 3: +3 AC, rAcid++.

1. You are partially covered in yellow scales. 2. You are mostly covered in yellow scales. 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.

1. You are partially covered in rough black scales. 2. You are mostly covered in rough black scales. 3. You are completely covered in rough black scales.

Rugged Brown Scales

Rank 1: +2 AC, +3% HP. Rank 2: +2 AC, +5% HP. Rank 3: +2 AC, +7% HP.

1. You are partially covered in rugged brown scales. 2. You are mostly covered in rugged brown scales. 3. You are completely covered in rugged brown scales.

Iridescent Scales

Rank 1: +4 AC. Rank 2: +6 AC. Rank 3: +9 AC.

1. You are partially covered in iridescent scales. 2. You are mostly covered in iridescent scales. 3. You are completely covered in iridescent scales.

Large Bony Plates

Gives you +(Rank+1) AC & SH.

1. You are partially covered in large bone plates. 2. You are mostly covered in large bone plates. 3. You are completely covered in large bone plates.

Distortion Field

Gives bonuses to EV (+1, +3, +5). At rank 3, permanently gives you the effect of Repel Missiles.

1. You are surrounded by a mild repulsion field. 2. You are surrounded by a moderate repulsion field. 3. You are surrounded by a strong repulsion field.

Thin Skeletal Structure

Gives you +2 DEX and -1 STR per rank. Also gives Stealth+ (+25 per rank).

1. You have a somewhat thin skeletal structure. 2. You have a moderately thin skeletal structure. 3. You have an unnaturally thin skeletal structure.

Jiyva

These mutations can only be acquired as gifts while worshiping Jiyva.

Gelatinous Body

Rank 1: +1 AC. Rank 2: +1 AC, +1 EV. Rank 3: +2 AC, +2 EV. Octopodes start at rank 1.

1. Your rubbery body absorbs attacks. 2. Your pliable body absorbs attacks. 3. Your gelatinous body deflects attacks.

Eyeballs

Rank 1: +3 to hit. Rank 2: +5 to hit. Rank 3: +7 to hit, See Invisible. Starting at rank 1, the eyeballs can also cause confusion: "The eyeballs on your body gaze at Foo." This occurs more often with higher rank.

1. Your body is partially covered in golden eyeballs. 2. Your body is mostly covered in golden eyeballs. 3. Your body is completely covered in golden eyeballs.

Translucent Skin

Ranks 2 and 3 grant Stealth+.

1. Your skin is partially translucent. 2. Your skin is mostly translucent. 3. Your transparent skin reduces the accuracy of your foes.

Acidic Bite

Grants an auxiliary Unarmed Combat bite attack. Deals 2d4 acid damage and stacks with Fangs. Yellow draconians naturally develop this mutation at level 14.

You have acidic saliva.

Species exclusive

These mutations may only be acquired by certain species.

Poison Breath

Exclusive to nagas as an upgrade to their Poison Spit ability. Lets you exhale poison clouds at enemies.

You can exhale a cloud of poison.

Stinger

Exclusive to nagas and draconians. Upgrades your 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).

1. Your tail ends in a poisonous barb. 2. Your tail ends in a sharp poisonous barb. 3. Your tail ends in a wickedly sharp and poisonous barb.

Big Wings

Exclusive to draconians. Grants an ability which gives temporary flight, similar to tengu before XL 15. Black draconians naturally develop this mutation at level 14.

Your wings are large and strong.

Tentacle Spike

Exclusive to octopodes. Upgrades your tentacle-slap attack, increasing its damage. Additional damage rises with rank. Octopodes may also temporarily induce rank 3 of this mutation with Beastly Appendage.

1. One of your tentacles bears a spike. 2. One of your tentacles bears a nasty spike. 3. One of your tentacles bears a large vicious spike.