Difference between revisions of "Negative energy"

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'''Negative energy''' is one of the most common elemental forces you will encounter as you explore the [[Dungeon]]. Both players and monsters can take advantage of negative energy through spells or specially [[brand]]ed weapons, though some monsters also possess innate negative energy abilities.
 
'''Negative energy''' is one of the most common elemental forces you will encounter as you explore the [[Dungeon]]. Both players and monsters can take advantage of negative energy through spells or specially [[brand]]ed weapons, though some monsters also possess innate negative energy abilities.
  
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==Negative Energy Damage==
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==Negative Energy Sources==
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The effects of negative energy damage are far more complicated than most other elemental types, simply because each source functions in a very different way. For instance, the [[Pain (brand)|pain]] [[brand]] and [[Pain]] spell simply deal damage to the target. [[Agony]] cuts the target's current [[HP]] in half. [[Bolt of Draining]], the [[Draining (brand)|draining]] brand, and other [[draining]] attacks deal damage and also inflict the drained status, lowering skills until more experience is acquired. Weapons of [[vampiricism]] utilize negative energy to steal HP, even if they don't deal any extra damage. Even defenses against these abilities varies from source to source: some can be negated with high [[magic resistance]], some by a single rank of [[negative energy resistance]], and some require three to be fully stopped.
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The effects of negative energy are more complicated than most other elemental types, as each source functions in a different way.  
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*The [[Pain (brand)|pain]] [[brand]] and [[Pain]] spell simply deal damage to the target.  
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*[[Bolt of Draining]], the [[Draining (brand)|draining]] brand, and other "[[draining]]" attacks deal damage and also inflict the [[drain]] status.
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*[[Vampiricism]] deals no damage, but only steals HP if the target isn't resistant to negative energy.
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*[[Torment]] and [[Agony]] cut the target's current HP in half, with rN+ having a far smaller effect than usual. See the [[torment]] article for more details.
  
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[[Torment]] is similar in some ways to negative energy, but is much harder to protect against and is capable of wreaking havoc on unprepared characters. See its own article for more details.
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The [[Necromancy]] school offers an extremely diverse variety of uses, such as healing, direct damage, and [[undead]] creation/destruction.
  
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==Negative Energy Sources==
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Any character that worships a [[good god]] should avoid using negative energy, as these gods are offended by it.
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It is relatively easy for characters to gain access to sources of negative energy damage. Most character types can benefit from common [[Draining (brand)|Draining]]-branded weapons, which deal additional negative energy damage on top of their normal physical damage and also permanently weaken the target (but cause them to be worth slightly less XP). Other less common negative energy weapon brands include [[Pain (brand)|pain]] (deals flat negative energy damage based on your [[Necromancy]] skill) and [[vampiricism]] (gives half the damage you deal back to you as healing).
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==Negative Energy Resistance==
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'''Negative energy resistance''' (also known as '''life protection''', rN+, or rNeg+) reduces or completely negates the effects of negative energy attacks you receive.  
  
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Zapping a [[wand of draining]] allows almost any character to inflict negative energy damage at range, softening up threats from a distance or killing them outright. The additional [[draining]] effect makes this a fantastic choice against overwhelming natural monsters such as [[hydra]]s or most dragons.
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For players, negative energy damage is reduced by 50% at rN+, 75% at rN++, and 100% at rN+++. Draining and enemy vampirism are also reduced by this much. [[Torment]] works differently. Each level of rN+ only reduces torment damage by -5% of your current HP,<ref>Technically, each level of rN+ reduces torment damage by 10%. Torment always deals (50% of your max HP - 1), so each level of rN+ reduces damage by 5% of your current HP (before rounding).</ref> so rN+ reduces it to -45% current HP, rN++ to -40% current HP, and rN+++ to -35% current HP.
  
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The [[Necromancy]] school is also available to [[necromancer]]s or any character with [[spellcasting]] capabilities and an appropriate [[book]]. This school offers an extremely diverse variety of uses, such as healing, direct damage, and [[undead]] creation/destruction.
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Monsters that are not [[natural]] or [[:Category:Plant holiness|plant]] [[holiness]] are immune to negative energy and torment. In addition, monsters with any level of rN+ have 100% immunity to negative energy damage (but not torment). Very few monsters spawn with only rN+ or rN++ ([[fenstrider witch]]es being the only example), though they can get it from equipped items.
  
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Any character that worships a [[good god]] should avoid using negative energy, as these gods are offended by it.
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===Sources===
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All sources of negative energy resistance stack (up to rN+++):
  
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==Negative Energy Resistance==
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'''Item'''
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The negative energy resistance [[intrinsic]] (also known as [[life protection]] or rN+) significantly reduces or completely negates the effects of negative energy attacks you receive. Those attacks and effects which aren't fully negated with a single rank are reduced by 33.3% per rank. All sources of negative energy resistance stack, and there are a number of sources:
 
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*[[Demonspawn mutations#Negative Energy Resistance|Negative Energy Resistance]] [[demonspawn mutation]]: rN+/rank
 
 
*[[Pearl dragon armour]]: rN+
 
*[[Pearl dragon armour]]: rN+
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*[[Amulet of warding]]: rN+
 
 
*Armour of [[positive energy (ego)|positive energy]]: rN+
 
*Armour of [[positive energy (ego)|positive energy]]: rN+
 
*[[Staff of death]]: rN+
 
*[[Staff of death]]: rN+
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*[[Ring of life protection]]: rN+
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*[[Ring of positive energy]]: rN+
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*[[Tiamat]]'s [[dragonskin cloak]] (50% chance per attack of rN+)
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*[[Tiamat]]'s [[dragonskin cloak]]: 50% chance per attack of rN+
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*[[Randart]]s: rN+ or very rarely rN++ (only possible on artefact amulets of warding)
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*[[Randart]]s: rN+, rN++, or rN+++, random
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*[[Statue Form]]: rN+
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*[[Necromutation]]: rN+++
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'''Form'''
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*Playing a [[ghoul]] or [[mummy]]: rN+++
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*[[Gargoyle]] and [[Granite talisman|Statue Form]]: rN+
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*Playing a vampire (depends on [[hunger]] level): rN+ - rN+++
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*[[Talisman of death|Death Form]]: rN+++
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*Worshiping [[the Shining One]] (depends on [[piety]]): rN+ - rN+++
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*Playing a [[Ghoul]], [[Mummy]], or bloodless [[Vampire]]: rN+++
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*MONSTERS ONLY: All monsters that are not [[natural]] are immune to negative energy. None naturally possess partial negative energy resistance, although they may gain it by wearing items that grant it.
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*Worshiping [[the Shining One]]: rN+ to rN+++, rises with piety
  
 
==History==
 
==History==
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In [[0.13]] draining attacks will inflict a temporary reduction in all skill levels which can be removed by gaining XP, and the negative energy resistance will reduce damage by 50/75/100%. Several bugs related to the implementation of rN+ for monsters will be fixed.
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*Prior to [[0.28]], plant monsters and forms had rN+++.
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*Prior to [[0.27]] the first rank of the [[Black Mark (mutation)|Black Mark]] [[demonspawn mutation]] provided rN+.
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*Prior to [[0.26]] draining lowered your skills instead of your maximum HP.
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*Prior to [[0.13]], draining attacks had no effect on your skills. Instead, they would permanently reduce your experience, potentially forcing you to lose levels. Also, ranks of negative energy resistance were somewhat less effective at reducing damage (33%/66%/100%). Finally, several bugs related to the implementation of rN+ for monsters were fixed.
  
 
==See Also==
 
==See Also==
 
[[:Category:Negative energy resistance|List of negative energy resistant monsters]]
 
[[:Category:Negative energy resistance|List of negative energy resistant monsters]]
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[[Category:Crystal Ball Articles]]
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==Notes==
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<references />

Latest revision as of 15:58, 17 January 2024

Version 0.30: This article may not be up to date for the latest stable release of Crawl.

Negative energy is one of the most common elemental forces you will encounter as you explore the Dungeon. Both players and monsters can take advantage of negative energy through spells or specially branded weapons, though some monsters also possess innate negative energy abilities.

Negative Energy Sources

The effects of negative energy are more complicated than most other elemental types, as each source functions in a different way.

  • The pain brand and Pain spell simply deal damage to the target.
  • Bolt of Draining, the draining brand, and other "draining" attacks deal damage and also inflict the drain status.
  • Vampiricism deals no damage, but only steals HP if the target isn't resistant to negative energy.
  • Torment and Agony cut the target's current HP in half, with rN+ having a far smaller effect than usual. See the torment article for more details.

The Necromancy school offers an extremely diverse variety of uses, such as healing, direct damage, and undead creation/destruction.

Any character that worships a good god should avoid using negative energy, as these gods are offended by it.

Negative Energy Resistance

Negative energy resistance (also known as life protection, rN+, or rNeg+) reduces or completely negates the effects of negative energy attacks you receive.

For players, negative energy damage is reduced by 50% at rN+, 75% at rN++, and 100% at rN+++. Draining and enemy vampirism are also reduced by this much. Torment works differently. Each level of rN+ only reduces torment damage by -5% of your current HP,[1] so rN+ reduces it to -45% current HP, rN++ to -40% current HP, and rN+++ to -35% current HP.

Monsters that are not natural or plant holiness are immune to negative energy and torment. In addition, monsters with any level of rN+ have 100% immunity to negative energy damage (but not torment). Very few monsters spawn with only rN+ or rN++ (fenstrider witches being the only example), though they can get it from equipped items.

Sources

All sources of negative energy resistance stack (up to rN+++):

Item

Form

History

  • Prior to 0.28, plant monsters and forms had rN+++.
  • Prior to 0.27 the first rank of the Black Mark demonspawn mutation provided rN+.
  • Prior to 0.26 draining lowered your skills instead of your maximum HP.
  • Prior to 0.13, draining attacks had no effect on your skills. Instead, they would permanently reduce your experience, potentially forcing you to lose levels. Also, ranks of negative energy resistance were somewhat less effective at reducing damage (33%/66%/100%). Finally, several bugs related to the implementation of rN+ for monsters were fixed.

See Also

List of negative energy resistant monsters

Notes

  1. ↑ Technically, each level of rN+ reduces torment damage by 10%. Torment always deals (50% of your max HP - 1), so each level of rN+ reduces damage by 5% of your current HP (before rounding).
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