Difference between revisions of "Invisible"

From CrawlWiki
Jump to: navigation, search
m (Fix category name)
(8 intermediate revisions by 7 users not shown)
Line 1: Line 1:
{{version014}}
+
{{version021}}
  
'''Invisible''' is a [[status effect]] which renders the victim unseen except through [[see invisible|magically enhanced vision]] or via [[sense invisible|other senses]]. It functions differently depending on whether it affects a player or a monster.
+
'''Invisible''' is a [[status effect]] which renders the target unseen except through [[see invisible]]. It functions differently depending on whether it affects a player or a monster.
  
 
==Player Version==
 
==Player Version==
Line 13: Line 13:
 
*You have a 60% chance of gaining a point of [[magic contamination]] when handle_time() is called.
 
*You have a 60% chance of gaining a point of [[magic contamination]] when handle_time() is called.
 
*You can only dissipate magic contamination via "violent discharge" or the wrath of [[Sif Muna]].
 
*You can only dissipate magic contamination via "violent discharge" or the wrath of [[Sif Muna]].
*+5 to all [[hunger]] costs.
 
 
*-5 to your melee to-hit number if you yourself cannot [[see invisible]]. Official justification: you can't see your weapon.
 
*-5 to your melee to-hit number if you yourself cannot [[see invisible]]. Official justification: you can't see your weapon.
  
 
===Sources===
 
===Sources===
 
You can become invisible by:  
 
You can become invisible by:  
*zapping yourself with a [[wand of invisibility]].
 
 
*quaffing a [[potion of invisibility]].
 
*quaffing a [[potion of invisibility]].
 
*casting the level 6 [[Hexes]] spell [[Invisibility]] on yourself.
 
*casting the level 6 [[Hexes]] spell [[Invisibility]] on yourself.
*using the [[Evoke Invisibility]] ability granted by a [[ring of invisibility]], [[cloak of darkness]], or certain [[artifact]]s.
+
*using the [[Evoke Invisibility]] ability granted by a [[cloak]] of invisibility or certain [[artifact]]s.
*drawing [[Nemelex Xobeh]]'s [[Shadow card]].
 
 
*zapping yourself with a [[wand of random effects]] (5.5% chance).
 
*zapping yourself with a [[wand of random effects]] (5.5% chance).
 
*[[Dithmenos]]' Shadow Form turns you into a shadow, granting intrinsic invisibility.
 
*[[Dithmenos]]' Shadow Form turns you into a shadow, granting intrinsic invisibility.
Line 29: Line 26:
  
 
==Strategy==
 
==Strategy==
The usefulness of being invisible is surprisingly limited. First off, acquiring it can be somewhat tricky. Potions and wands of invisibility are both very finite, and gaining the skill necessary to cast a level 6 spell can be prohibitive for many builds. Even once it is easily castable, overuse generates magic contamination rapidly, putting you at risk of dangerous [[miscast effect]]s and [[bad mutations]]. Finding items with evocable invisibility is the easiest way to gain unlimited access early on, but this is by no means guaranteed.
+
The usefulness of being invisible is surprisingly limited. First off, acquiring it can be somewhat tricky. Potions are very finite, and gaining the skill necessary to cast a level 6 spell can be prohibitive for many builds. Even once it is easily castable, overuse generates magic contamination rapidly, putting you at risk of dangerous [[miscast effect]]s and [[bad mutations]]. Finding items with evocable invisibility is the easiest way to gain unlimited access early on, but this is by no means guaranteed.
  
Also, the list of monsters capable of seeing or sensing invisible is unfortunately [[:Category:See invisible|rather]] [[:Category:Sense invisible|large]], making the status effect completely useless against them (or worse than useless if you yourself can't see invisible). However, [[stealth]]y [[stab]]ber characters can benefit from being invisible tremendously; it greatly enhances both your ability to go undetected around susceptible enemies and your damage output in melee with them thanks to the stabbing opportunities it provides. The trick lies in learning which enemies can and cannot see right through it.
+
Also, the list of monsters capable of seeing invisible is unfortunately rather large (see [[Category:See invisible]]) , making the status effect completely useless against them. However, [[stealth]]y [[stab]]ber characters can benefit from being invisible tremendously; it greatly enhances both your ability to go undetected around susceptible enemies and your damage output in melee with them thanks to the stabbing opportunities it provides. The trick lies in learning which enemies can and cannot see right through it.
  
Alternatively, consider learning the [[Dazzling Spray]] spell. This level 3 spell damages opponents and renders them [[dazzled]], duplicating many of the advantages of invisibility with none of the drawbacks, and affecting many opponents that possess see invisible.
+
Alternatively, consider learning the [[Dazzling Spray]] spell. This level 3 spell damages opponents and renders them [[dazzled]], duplicating many of the advantages of invisibility without some of its limitations, affecting many opponents that possess see invisible.
  
 
==Comparing==
 
==Comparing==
*Potions and wands have no chance of failure, but are of limited quantity.
+
*Potions have no chance of failure, but are of limited quantity.
*Rings and evocable sources are able to be used with no training, but even with high Evocations will still end up with a noticeable failure rate and short duration.
+
*Evocable sources are able to be used with no training, but even with high Evocations will still end up with a noticeable failure rate and short duration.
 
*The spell requires heavy investment in Hexes and a hefty 6 mp per cast, but becomes very reliable and long lasting at high spellpower.
 
*The spell requires heavy investment in Hexes and a hefty 6 mp per cast, but becomes very reliable and long lasting at high spellpower.
 
Evocable invisibility lets you end the effect early, if you have concerns about contamination.
 
  
 
==Monster Version==
 
==Monster Version==
Line 48: Line 43:
 
*You suffer a -6 penalty to your melee to-hit number against invisible monsters.
 
*You suffer a -6 penalty to your melee to-hit number against invisible monsters.
  
On top of that, invisible monsters cannot be seen either within your [[line of sight]] or on the map, and if you actually manage to guess which tile they're in and attack them, you receive significantly less information than normal (the monster is referred to as "it" rather than by its actual name).
+
On top of that, invisible monsters cannot be seen either within your [[line of sight]] or on the map, and if you actually manage to guess which tile they're in and attack them, you receive significantly less information than normal (the monster is referred to as "something" rather than by its actual name).
  
 
===Sources===
 
===Sources===
Line 65: Line 60:
 
*{{Magenta|p}} [[File:Shadow.png]] '''[[Shadow]]''' (by inherent ability, not a spell)
 
*{{Magenta|p}} [[File:Shadow.png]] '''[[Shadow]]''' (by inherent ability, not a spell)
 
<!--Formatted this way to keep the text in the same line-->
 
<!--Formatted this way to keep the text in the same line-->
*{{monsterlink|Deep elf soldier}}
 
*{{monsterlink|Deep elf fighter}}
 
 
*{{monsterlink|Deep elf knight}}
 
*{{monsterlink|Deep elf knight}}
*{{monsterlink|Deep elf mage}}
 
*{{monsterlink|Deep elf conjurer}}
 
 
*{{monsterlink|Lich}}
 
*{{monsterlink|Lich}}
 
*{{monsterlink|Ancient lich}}
 
*{{monsterlink|Ancient lich}}
Line 75: Line 66:
 
*{{monsterlink|Vampire knight}}
 
*{{monsterlink|Vampire knight}}
 
*{{monsterlink|Vampire mage}}
 
*{{monsterlink|Vampire mage}}
*{{monsterlink|Rakshasa}}
 
 
*{{monsterlink|Boggart}}
 
*{{monsterlink|Boggart}}
 
*{{monsterlink|Necromancer (monster)}}
 
*{{monsterlink|Necromancer (monster)}}
Line 87: Line 77:
 
*{{monsterlink|Maurice}}
 
*{{monsterlink|Maurice}}
 
*{{monsterlink|Boris}}
 
*{{monsterlink|Boris}}
*{{monsterlink|Norris}}
 
*{{monsterlink|Frederick}}
 
 
*{{monsterlink|The Enchantress}}
 
*{{monsterlink|The Enchantress}}
*{{monsterlink|Gloorx Vloq}}
 
 
This effect has a finite duration, but the monster can always recast it after it has run out.
 
This effect has a finite duration, but the monster can always recast it after it has run out.
  
====Potion or wand users====
+
====Potion users====
Monsters who know how to use magic items may use [[potion of invisibility|potions]] or [[wands of invisibility]] to make themselves invisible. This effect has a finite duration, but the monster can always reattempt it after it has run out.
+
Monsters who know how to use potions may use [[potion of invisibility|potions]] to make themselves invisible. This effect has a finite duration, but the monster may be able to quaff another potion (should they have more than 1) to reapply the effect.
  
 
==Detecting invisible monsters==
 
==Detecting invisible monsters==
Line 101: Line 88:
 
*Wearing a [[ring]], [[Armour#headgear|headgear]], or [[artefact]] with the see invisible [[ego]]
 
*Wearing a [[ring]], [[Armour#headgear|headgear]], or [[artefact]] with the see invisible [[ego]]
 
*Having the [[Acute Vision]] [[mutation]]. [[Spriggan]]s, [[vampire]]s, [[naga]]s, and [[felid]]s all have this mutation naturally.
 
*Having the [[Acute Vision]] [[mutation]]. [[Spriggan]]s, [[vampire]]s, [[naga]]s, and [[felid]]s all have this mutation naturally.
*Having rank 3 of the [[Antennae]] mutation.
+
*Having rank 3 of the [[Antennae]] mutation. [[Formicid]]s have this.
*Having rank 3 of the [[Eyeballs]] mutation.
+
*Having rank 3 of [[Jiyva]]'s [[Eyeballs]] mutation.
  
 
===Backlighting===
 
===Backlighting===
Line 109: Line 96:
 
*You hit a [[insubstantial|substantial]] invisible target with [[Sticky Flame]], unless it's standing in water (that immediately extinguishes the flames).
 
*You hit a [[insubstantial|substantial]] invisible target with [[Sticky Flame]], unless it's standing in water (that immediately extinguishes the flames).
 
*An enemy enters your [[aura#halo|Halo aura]].
 
*An enemy enters your [[aura#halo|Halo aura]].
 +
*You invoke Fedhas's [[Fedhas Madash#Given abilities|Sunlight]] ability.
 
*You suffer from significant amounts of [[magical contamination]] (yellow or worse).
 
*You suffer from significant amounts of [[magical contamination]] (yellow or worse).
  
 
===Invisible monsters revealed as a disturbance===
 
===Invisible monsters revealed as a disturbance===
Certain less stealthy monsters, like [[orc wizard]]s and [[sky beast]]s, will occasionally leave disturbances while invisible, represented by a white humanoid outline if playing in tiles or by the {{White|{}} glyph if playing in console. Additionally, all ''[[insubstantial|substantial]]'' invisible monsters, when passing through a cloud, are temporarily rendered visible in the same way. Should you examine the disturbance (with the '''[[x]]''' key), you will be able to determine the creature's identity. Thus anything the player can do to create clouds when an invisible creature is near will aid him in fixing that creature's location:
+
All invisible monsters will occasionally leave disturbances while invisible, represented by a white humanoid outline if playing in tiles or by the {{White|{}} glyph if playing in console. If you attack a square and the monster does not move from that square, the monster will be revealed as a disturbance until it moves (the only invisible monsters likely to move without you moving are [[unseen horror]]s. Additionally, all ''[[insubstantial|substantial]]'' invisible monsters, when passing through an opaque cloud (e.g. fog, steam), are temporarily rendered visible in the same way. Thus anything the player can do to create clouds when an invisible creature is near will aid him in fixing that creature's location:
*Reading a [[scrolls of fog]] or evoking the [[cloak of the Thief]].
+
*Reading a [[scroll of fog]] or evoking the [[cloak of the Thief]].
 
*Using Ice Magic in and over lava, creating [[steam]] clouds.
 
*Using Ice Magic in and over lava, creating [[steam]] clouds.
 
*Using Fire Magic in and over water, creating steam clouds.
 
*Using Fire Magic in and over water, creating steam clouds.
*Using any persistent cloud-based magic: [[Poisonous Cloud]], [[Mephitic Cloud]], etc.
+
*Invoking [[Wu Jian]]'s Heavenly Storm ability.
*Casting [[Ring of Flames]].
+
 
*[[Fedhas Madash]]'s [[Fedhas Madash#Given abilities|Rain]] and [[Fedhas Madash#Given abilities|Sunlight]] abilities.
 
 
Also, any non-[[fly]]ing invisible monster in [[shallow water]] is always visible as a disturbance.
 
Also, any non-[[fly]]ing invisible monster in [[shallow water]] is always visible as a disturbance.
 
==Submerged monsters==
 
Certain monsters have the ability to render themselves ''effectively'' invisible by [[submerge|submerging]]. However, this is a defensive maneuver only: they are always revealed if they become adjacent to, or if they attempt to attack, the player. None of the conventional methods described above for detecting actually invisible monsters work on submerged monsters:
 
*In deep water: [[crocodile]]s, [[baby alligator]]s, [[alligator]]s, [[swamp worm]]s, [[sea snake]]s, [[electric eel]]s
 
*In lava: [[lava worm]]s, [[lava snake]]s, [[salamander]]s
 
*In clear tiles: [[trapdoor spider]]s, [[air elemental]]s
 
  
 
==History==
 
==History==
Prior to [[0.13]], invisible monsters were immune to the effects of [[Olgreb's Toxic Radiance]].
+
*Prior to [[0.22]], the [[submerging]] mechanic existed. [[:Category:Submerges|Certain monsters]] had an ability to render themselves ''effectively'' invisible by hiding in [[deep water]], [[lava]], or even [[Trapdoor spider|under the floor]].
 +
*Prior to [[0.20]], invisibility increased the player's [[hunger]] rate by 5.
 +
*Prior to [[0.16]], the [[sense invisible]] intrinsic existed, which was an upgrade to [[see invisible]].
 +
*Prior to [[0.13]], invisible monsters were immune to the effects of [[Olgreb's Toxic Radiance]].
  
 
[[Category:Game mechanics]]
 
[[Category:Game mechanics]]
 
[[Category:Invisible monsters|*]]
 
[[Category:Invisible monsters|*]]
 
[[Category:Status effects]]
 
[[Category:Status effects]]

Revision as of 21:01, 12 February 2020

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

Invisible is a status effect which renders the target unseen except through see invisible. It functions differently depending on whether it affects a player or a monster.

Player Version

An invisible player gets the following bonuses and penalties, assuming your victim cannot see or sense invisible:

  • Anyone attacking you in melee incurs a 35% reduction to their to-hit number.
  • Any of your melee victims who have shields have their blocking roll divided by three.
  • You occasionally make tier-3 stabbing attacks, and sleeping or unaware monsters suffer a large penalty to detecting you through your stealth.
  • Enemy ranged attacks have their to-hit number halved, and may target the wrong tile entirely.
  • Monsters are less likely to use certain spells or abilities against you.
  • There is a chance opponents who can't see invisible will break off their attack and resume wandering.
  • You have a 60% chance of gaining a point of magic contamination when handle_time() is called.
  • You can only dissipate magic contamination via "violent discharge" or the wrath of Sif Muna.
  • -5 to your melee to-hit number if you yourself cannot see invisible. Official justification: you can't see your weapon.

Sources

You can become invisible by:

Regardless of source, player invisibility lasts for 14 + 1d(spell power) turns (max: 100 turns)

Strategy

The usefulness of being invisible is surprisingly limited. First off, acquiring it can be somewhat tricky. Potions are very finite, and gaining the skill necessary to cast a level 6 spell can be prohibitive for many builds. Even once it is easily castable, overuse generates magic contamination rapidly, putting you at risk of dangerous miscast effects and bad mutations. Finding items with evocable invisibility is the easiest way to gain unlimited access early on, but this is by no means guaranteed.

Also, the list of monsters capable of seeing invisible is unfortunately rather large (see) , making the status effect completely useless against them. However, stealthy stabber characters can benefit from being invisible tremendously; it greatly enhances both your ability to go undetected around susceptible enemies and your damage output in melee with them thanks to the stabbing opportunities it provides. The trick lies in learning which enemies can and cannot see right through it.

Alternatively, consider learning the Dazzling Spray spell. This level 3 spell damages opponents and renders them dazzled, duplicating many of the advantages of invisibility without some of its limitations, affecting many opponents that possess see invisible.

Comparing

  • Potions have no chance of failure, but are of limited quantity.
  • Evocable sources are able to be used with no training, but even with high Evocations will still end up with a noticeable failure rate and short duration.
  • The spell requires heavy investment in Hexes and a hefty 6 mp per cast, but becomes very reliable and long lasting at high spellpower.

Monster Version

Invisible monsters are very dangerous to a player who cannot see invisible. If you cannot see invisible, then in melee with invisible monsters:

  • Your shield rolls are divided by three.
  • You suffer a -10 penalty to your EV against their melee attacks
  • You suffer a -6 penalty to your melee to-hit number against invisible monsters.

On top of that, invisible monsters cannot be seen either within your line of sight or on the map, and if you actually manage to guess which tile they're in and attack them, you receive significantly less information than normal (the monster is referred to as "something" rather than by its actual name).

Sources

Permanently invisible

These monsters are permanently, inherently invisible:

Casters of invisibility

Some spellcasting monsters can make themselves invisible:

This effect has a finite duration, but the monster can always recast it after it has run out.

Potion users

Monsters who know how to use potions may use potions to make themselves invisible. This effect has a finite duration, but the monster may be able to quaff another potion (should they have more than 1) to reapply the effect.

Detecting invisible monsters

See invisible

If you have the see invisible intrinsic, invisible monsters gain no benefits against you. You can acquire this in the following ways:

Backlighting

Under some circumstances, a target may become backlit. This renders its invisibility ineffective, and actually makes it easier to hit than normal. Backlighting occurs whenever:

Invisible monsters revealed as a disturbance

All invisible monsters will occasionally leave disturbances while invisible, represented by a white humanoid outline if playing in tiles or by the { glyph if playing in console. If you attack a square and the monster does not move from that square, the monster will be revealed as a disturbance until it moves (the only invisible monsters likely to move without you moving are unseen horrors. Additionally, all substantial invisible monsters, when passing through an opaque cloud (e.g. fog, steam), are temporarily rendered visible in the same way. Thus anything the player can do to create clouds when an invisible creature is near will aid him in fixing that creature's location:

  • Reading a scroll of fog or evoking the cloak of the Thief.
  • Using Ice Magic in and over lava, creating steam clouds.
  • Using Fire Magic in and over water, creating steam clouds.
  • Invoking Wu Jian's Heavenly Storm ability.

Also, any non-flying invisible monster in shallow water is always visible as a disturbance.

History