Difference between revisions of "Potion of cancellation"

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{{flavour|A potion which ends most magical effects, good or bad, affecting one who drinks it. It also reduces magical contamination.}}
  
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{{flavour|A potion which ends most magical effects, good or bad, affecting you.}}
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Quaffing a '''potion of cancellation''' immediately ends nearly all [[status effects]] you may be enjoying/suffering from. It also removes 1000-5000 points of [[magic contamination]]. The potion's description lists all your current status effects that can be removed by the potion.
  
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Quaffing a '''potion of cancellation''' immediately ends any of the following negative [[status effect]]s you may be suffering from:
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==Dispellable Effects==
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confused, paralyzed, slow, silenced, petrifying/petrified, liquefying, sentinel's mark, [[Sap Magic]], fire/poison vulnerability, dimension anchor, antimagic, and corona. It also removes some [[magical contamination]], if you have any. (Note that you cannot quaff the potion if you are paralyzed or fully petrified, but technically these effects would also be removed by the potion, according to the code.)
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These are also the effects that can be ended from [[Quicksilver Bolt]] (including the [[wand of quicksilver]]) and [[Yara's Violent Unravelling]]. The list of all affected [[status effect]]s is as follows:<ref>{{source ref|0.29.0|duration-data.h|L159}}</ref>
  
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It also cancels teleport control, imminent teleport, haste, swiftness, might, agility, brilliance, phase shift,
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===The Bad===
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invisible, stealth, darkness, repel missiles, deflect missiles, fire shield, icy armour, condensation shield, stoneskin, resistance, magic shield, shroud of golubria, confusing touch, sure blade, branded weapon, charged [[Delayed Fireball]], [[Olgreb's Toxic Radiance]], [[Portal Projectile]], death channel, disjunction, and regeneration.
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*Many action disabling effects:
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**[[Bad form]]s
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**-[[Blink]]
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**[[Confusion]]
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**[[Dimension Anchor]] (-Tele)
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**[[Cause Fear|Fear]]
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**[[Mesmerise]]d
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**[[Miscast effects|Locked Down]] (Stuck)
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**[[Petrify]]ing
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**[[Silence]] (when used on the source of the aura; e.g. the potion works if you cast the spell, but not if an enemy cast the spell)
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*Many debuffs:
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**[[Corona]]
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**[[Acid#Corrosion|Corroded]]
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**[[Slow]]
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**[[Vertigo]]
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**[[Weak|Weakness]]
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**[[Frozen]]
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*Elemental [[vulnerability|vulnerabilities]]:
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**[[Fire]] vulnerability (rF-)
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**[[Strip Willpower]] (Will-)
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**[[Virulence]] (rPois-)
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**[[Scroll of vulnerability|Weak-willed]] (Will 1/2)
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*Other effects:
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**[[Flayed ghost|Flayed]]
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**[[Doom hound|Howl]]
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**[[Sap Magic]]
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**[[Sentinel's Mark]]
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**[[Sticky Flame]] (Fire)
  
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After one turn, the potion additionally cancels flight and all transformations not listed above.
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===The Good===
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*[[Teleport]]ing
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*Most effects available from [[potion]]s, excluding [[berserk]]:
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**[[Potion of attraction|Attraction]]
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**[[Potion of ambrosia|Ambrosia]]
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**[[Brilliance]]
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**[[Haste]]
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**[[Invisible]]
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**[[Might]]
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**[[Resistance]]
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**[[Agility]] (formerly from a [[potion of agility|potion]])
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*[[Necromancy]] spells:
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**[[Animate Dead]]
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**[[Death Channel]]
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*Certain other spells:
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**[[Confusing Touch]]
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**[[Disjunction]]
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**[[Leda's Liquefaction|Liquefying]]
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**[[Olgreb's Toxic Radiance]]
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**[[Ozocubu's Armour]]
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**[[Portal Projectile]]
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**[[Swiftness]]
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**[[Wereblood]]
  
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Notably, it does ''not'' affect [[Death's Door]], lowered MR, [[Thunderdome#Quad damage|Quad Damage]], [[Tornado]], [[Infusion]], [[Song of Slaying]], the Elixir Card, [[Dragon's Call]], [[Aura of Abjuration]], or [[Powered By Death]]. It also ignores poison and liquid flames, berserk, sleeping, and fortitude, and god-specific effects. It has no effect on stat drain. It will remove the slow status caused by miasma and curare, but it will have no effect on the other ailments caused (rotted HP and poison in case of miasma, asphyxiation and poison in the case of curare).
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===Resistant Status Effects===
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Rather than being dispelled outright, these status effects will have their duration set to 1 turn.
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*[[Flight]]
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*All [[Transmutations]] not listed above
  
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The same cancellation effect occurs when you are hit by a [[Quicksilver Bolt]] or sometimes by [[Sif Muna]]'s punishment.
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===Monster Status Effects===
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These statuses can be cancelled normally, but are either exclusive to monsters, or a player wouldn't be able to act while in the status (where a monster's [[Quicksilver Bolt]] can end it).
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*[[Antimagic]] (only a status for monsters)
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*[[Bind Souls]], [[Simulacrum]]
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*[[Inner Flame]]
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*[[Repel Missiles]]
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*[[Word of Recall]]
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*[[Paralysis]]
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*[[Petrify|Petrified]]
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*[[Sleep]]
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==Unaffected Status Effects==
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===The Bad===
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*[[Draining]]
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*[[Barbs]]
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*No Potions / No Scrolls
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*[[Poison]]
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*Action cooldowns:
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**-[[Berserk]]
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**-[[Death's Door|DDoor]]
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**[[Exhaustion]]
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**-[[Barachi|Hop]]
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===The Good===
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*[[Berserk]]
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*[[Death's Door]]
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*[[Dragon's Call]]
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*[[Maxwell's Capacitive Coupling]] (though it ends if you do anything but wait)
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*[[Powered By Death]]
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*[[Polar Vortex]]
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*[[Thunderdome#Quad damage|Quad Damage]]
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*All [[god]]-granted status effects
  
 
==Strategy==
 
==Strategy==
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Confusion can be removed with the far more common [[potion of curing]], which lets one save potions of cancellation for more obscure, but no less dangerous, status effects, such as petrification, slow, and Sentinel's Mark. Its ability to cancel Mark makes it particularly useful for Vaults, especially on a character that has had poor luck in finding gear that increases resistance to magic. Finally, if you find yourself with dangerous levels of contamination, one or two of these potions may bring you back to safe levels while avoiding the usual bad effects. However, unless there are many cancellation potions on hand, one should be wary of using cancellation potions simply for the purpose of glow removal outside of combat, as getting hit with an ill-timed Mark or Slow tends to be more dangerous than suffering one or two contamination effects with no monsters around.
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Potions of cancellation are rare, but quite useful. It can remove many dangerous status effects, such as [[Petrify]]. [[Mark]], and [[bad form]]s. It can also remove contamination in a pinch.
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Note that cancellation will also remove many useful statuses, such as Haste and Tele, so be careful. This makes monsters with Quicksilver Bolt some of the more dangerous foes in the game.
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Potions of cancellation aren't common, so try to conserve them if you can afford to. The following statuses may be ended via other sources:
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*[[Confusion]] - quaffing a [[potion of curing]]
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*[[Teleport]] - reading another [[scroll of teleportation]]
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*[[Slow]] - negated by [[haste]]
  
 
==History==
 
==History==
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Potions of cancellation were added in [[0.15]], partially taking the role of [[scrolls of vulnerability]].
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*The list of the cancellable effects was added to the potion's description in [[0.27]].
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*Potions of cancellation were added in [[0.15]], partially taking the role of [[scrolls of vulnerability]].
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==References==
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<references/>
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{{potions}}

Latest revision as of 09:38, 12 January 2024

Version 0.29: This article may not be up to date for the latest stable release of Crawl.
Type Potion
Name Potion of cancellation
Icon Potion of cancellation.png
A potion which ends most magical effects, good or bad, affecting one who drinks it. It also reduces magical contamination.

Quaffing a potion of cancellation immediately ends nearly all status effects you may be enjoying/suffering from. It also removes 1000-5000 points of magic contamination. The potion's description lists all your current status effects that can be removed by the potion.

Dispellable Effects

These are also the effects that can be ended from Quicksilver Bolt (including the wand of quicksilver) and Yara's Violent Unravelling. The list of all affected status effects is as follows:[1]

The Bad

The Good

Resistant Status Effects

Rather than being dispelled outright, these status effects will have their duration set to 1 turn.

Monster Status Effects

These statuses can be cancelled normally, but are either exclusive to monsters, or a player wouldn't be able to act while in the status (where a monster's Quicksilver Bolt can end it).

Unaffected Status Effects

The Bad

The Good

Strategy

Potions of cancellation are rare, but quite useful. It can remove many dangerous status effects, such as Petrify. Mark, and bad forms. It can also remove contamination in a pinch.

Note that cancellation will also remove many useful statuses, such as Haste and Tele, so be careful. This makes monsters with Quicksilver Bolt some of the more dangerous foes in the game.

Potions of cancellation aren't common, so try to conserve them if you can afford to. The following statuses may be ended via other sources:

History

  • The list of the cancellable effects was added to the potion's description in 0.27.
  • Potions of cancellation were added in 0.15, partially taking the role of scrolls of vulnerability.

References

  1. ↑ duration-data.h:L159 (0.29.0)
Potions
Ambrosia • Attraction • Berserk rage • Brilliance • Cancellation • Curing • Degeneration • Enlightenment • Experience • Haste • Heal wounds • Invisibility • Lignification • Magic • Might • Mutation • Resistance
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