Spell penetration

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{{#data:Itemtip

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'''Spell penetration''' reduces the target's resistance to your spells; it is a different mechanic from [[spell hit rating]]. Spell penetration only works against targets with [[resistance|resistances]], and will not reduce resistances below zero.

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|name=Replica Darkmantle Belt

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|quality=rare

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|icon=inv_belt_03

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|bind=boe

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|slot=Waist

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|type=Leather

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|armor=147

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|ilvl=65

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|itemid=78265

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}}

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==Source==

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This item is sold by [[Barum]] on [[Darkmoon Island]] for {{cost|dpt=55}}.

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==Patches and hotfixes==

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Spell penetration typically is a PvP stat, intended to help casters against players who wear resistance gear or are buffed with extra resistance, such as [[Mark of the Wild]]. In PvE, targets of a higher level than the caster have a base resistance (2% of mitigation per level difference) which cannot be overcome by spell penetration nor by any other stat. Otherwise, very few mobs and raid-level bosses have a substantial amount of resistance to overcome.

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==Formulas==

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The formula for spell penetration is quite simple. Each point of spell penetration negates one point of a target's [[resistance]]. Spell penetration cannot reduce a target's resistance below zero. The following equation gives effect of spell penetration on resistance, where P is the caster's spell penetration, and Rb is the target's base resistance. Here, the min() function means the minimum of two values - in this case, it shows that spell penetration greater than a target's base resistance has no effect.

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R = Rb - min(P, Rb)

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For example, a level 70 player with 30 spell penetration casts a fire spell at another level 70 player buffed with 40 fire resistance. The spell resist check will be done as if the target only had 10 fire resistance. A level 70 player with 100 spell penetration casting at the same target will have his fire spell's resist check done as if the target had zero fire resistance (not -60).

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For additional resistance due to level difference, spell penetration has no effect. In this equation, Lt is the target's level and Lc is the caster's level. For more details on this equation, see the [[resistance]] article.

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R = Rb + max((Lt - Lc) * 5, 0) - min(P, Rb)

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For example, A level 70 player casts a fire spell at a level 73 raid boss with no innate resistance. The level difference is 3, so the raid boss has effectively 15 resistance to all schools against the level 70 caster. No matter how much spell penetration the caster has, his spell's resist check will always be done as if the target had 15 resistance.

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==Increase==

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The following increase spell penetration:

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* Warlock: [[Curse of the Elements]] ([[Jinx]])

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* Spell penetration gear

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* [[Spell penetration gems]] and [[enchant]]s

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==Use==

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Especially in PvP, it is difficult to find a well-balanced amount of spell penetration. Against targets with no resistance, it has no effect (and as such is wasted). However, against targets with resistances, spell penetration is a powerful and, in terms of [[item level|item values]], cheap stat. Ideally, a caster should have exactly as much spell penetration as necessary to lower the target's resistance to zero.

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In PvP, good spell penetration values are 54 (to counter unimproved [[Mark of the Wild]], 75 if the druid spent two points in [[Improved Mark of the Wild]]) and 130 (to counter various single-school resistance buffs, such as the Paladin's resistance auras); these are usually enough. 50 will often do for 'occasional' PvP.

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In PvE, where only few mobs have resistances, especially with [[Curse of Elements]] active, spell penetration's value is situational at best. The Hungarfen in Heroic Underbog, for example, have some Nature Resistance that Spell Penetration is useful against, and the Greater Lava Spiders in Searing Gorge have some Fire Resistance. It has been estimated that [[Rage Winterchill (tactics)|Rage Winterchill]] has approximately 200 Frost Resistance and that [[Supremus]] has approximately 200 Fire Resistance. Since neither of these fights have a challenging time requirement, stacking enough spell penetration to compliment the curses certainly isn't mandatory but will noticeably improve individual performance.

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[[Paladin]]s actually need no spell penetration since the Holy school of magic has no resistance at all, in [[PvP]] or otherwise. For [[Discipline]] or [[Holy]] [[priest]]s, spell penetration is not nearly as useful as it is for other casters, but since some critical PvP spells belong to the Shadow school (e.g. [[Shadow Word: Pain]], [[Psychic Scream]]) it isn't completely useless.

==See also==

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* [[{{#sub:{{PAGENAME}}|8|0}}]]

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* [[Spell hit rating]]

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* [[Resistance]]

==External links==

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<!-- Read http://www.wowpedia.org/Wowpedia:External_links before posting your links here.

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* [http://forums.subcreation.net/viewtopic.php?t=482 Reports of level-based resistances uncounterable by penetration gear.]

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Links that do not conform to the rules will be DELETED.

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* [http://wow.curse.com/downloads/details/5174/ GLOCK]: A mod which parses damage done to a mob to determine its base resistance.

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Repeat violations may result in a BAN.

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Have a nice day. :) -->

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[[Category:~~Formulas~~ ~~and~~ ~~game~~ ~~mechanics~~]]

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[[Category:World of Warcraft rare items]]

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[[Category:~~Game~~ ~~terms~~]]

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[[Category:World of Warcraft leather waist items]]

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[[Category:Attributes]]

Wowpedia

Changes: Spell penetration

Revision as of 07:50, 8 November 2011

Contents

Source

Patches and hotfixes

See also

External links

@@ Line 1: / Line 1: @@
-{{Stub/Ability}}
+{{Stub/PTR|4.3.0}}
+{{#data:Itemtip
-'''Spell penetration''' reduces the target's resistance to your spells; it is a different mechanic from [[spell hit rating]]. Spell penetration only works against targets with [[resistance|resistances]], and will not reduce resistances below zero.
+|name=Replica Darkmantle Belt
+|quality=rare
+|icon=inv_belt_03
+|bind=boe
+|slot=Waist
+|type=Leather
+|armor=147
+|ilvl=65
+|itemid=78265
+}}
+==Source==
+This item is sold by [[Barum]] on [[Darkmoon Island]] for {{cost|dpt=55}}.
+==Patches and hotfixes==
-Spell penetration typically is a PvP stat, intended to help casters against players who wear resistance gear or are buffed with extra resistance, such as [[Mark of the Wild]]. In PvE, targets of a higher level than the caster have a base resistance (2% of mitigation per level difference) which cannot be overcome by spell penetration nor by any other stat. Otherwise, very few mobs and raid-level bosses have a substantial amount of resistance to overcome.
+{{Patch 4.3.0|note=Added.}}
-==Formulas==
-The formula for spell penetration is quite simple.  Each point of spell penetration negates one point of a target's [[resistance]].  Spell penetration cannot reduce a target's resistance below zero.  The following equation gives effect of spell penetration on resistance, where P is the caster's spell penetration, and Rb is the target's base resistance. Here, the min() function means the minimum of two values - in this case, it shows that spell penetration greater than a target's base resistance has no effect.
- R = Rb - min(P, Rb)
-For example, a level 70 player with 30 spell penetration casts a fire spell at another level 70 player buffed with 40 fire resistance. The spell resist check will be done as if the target only had 10 fire resistance. A level 70 player with 100 spell penetration casting at the same target will have his fire spell's resist check done as if the target had zero fire resistance (not -60).
-For additional resistance due to level difference, spell penetration has no effect.  In this equation, Lt is the target's level and Lc is the caster's level. For more details on this equation, see the [[resistance]] article.
- R = Rb + max((Lt - Lc) * 5, 0) - min(P, Rb)
-For example, A level 70 player casts a fire spell at a level 73 raid boss with no innate resistance. The level difference is 3, so the raid boss has effectively 15 resistance to all schools against the level 70 caster.  No matter how much spell penetration the caster has, his spell's resist check will always be done as if the target had 15 resistance.
-==Increase==
-The following increase spell penetration:
-* Warlock: [[Curse of the Elements]] ([[Jinx]])
-* Spell penetration gear
-* [[Spell penetration gems]] and [[enchant]]s
-==Use==
-Especially in PvP, it is difficult to find a well-balanced amount of spell penetration. Against targets with no resistance, it has no effect (and as such is wasted). However, against targets with resistances, spell penetration is a powerful and, in terms of [[item level|item values]], cheap stat. Ideally, a caster should have exactly as much spell penetration as necessary to lower the target's resistance to zero.
-In PvP, good spell penetration values are 54 (to counter unimproved [[Mark of the Wild]], 75 if the druid spent two points in [[Improved Mark of the Wild]]) and 130 (to counter various single-school resistance buffs, such as the Paladin's resistance auras); these are usually enough. 50 will often do for 'occasional' PvP.
-In PvE, where only few mobs have resistances, especially with [[Curse of Elements]] active, spell penetration's value is situational at best.  The Hungarfen in Heroic Underbog, for example, have some Nature Resistance that Spell Penetration is useful against, and the Greater Lava Spiders in Searing Gorge have some Fire Resistance.  It has been estimated that [[Rage Winterchill (tactics)|Rage Winterchill]] has approximately 200 Frost Resistance and that [[Supremus]] has approximately 200 Fire Resistance. Since neither of these fights have a challenging time requirement, stacking enough spell penetration to compliment the curses certainly isn't mandatory but will noticeably improve individual performance.
-[[Paladin]]s actually need no spell penetration since the Holy school of magic has no resistance at all, in [[PvP]] or otherwise. For [[Discipline]] or [[Holy]] [[priest]]s, spell penetration is not nearly as useful as it is for other casters, but since some critical PvP spells belong to the Shadow school (e.g. [[Shadow Word: Pain]], [[Psychic Scream]]) it isn't completely useless.
 ==See also==
+* [[{{#sub:{{PAGENAME}}|8|0}}]]
-* [[Spell hit rating]]
-* [[Resistance]]
 ==External links==
+<!-- Read http://www.wowpedia.org/Wowpedia:External_links before posting your links here.
-* [http://forums.subcreation.net/viewtopic.php?t=482 Reports of level-based resistances uncounterable by penetration gear.]
+Links that do not conform to the rules will be DELETED.
-* [http://wow.curse.com/downloads/details/5174/ GLOCK]: A mod which parses damage done to a mob to determine its base resistance.
+Repeat violations may result in a BAN.
+Have a nice day. :) -->
-{{attack table}}
+{{Elinks-item|78265}}
-[[Category:Formulas and game mechanics]]
+[[Category:World of Warcraft rare items]]
-[[Category:Game terms]]
+[[Category:World of Warcraft leather waist items]]
-[[Category:Attributes]]