RG Live WotLK 3.3.5a

Zurzeit stacken Feenfeuer und Äquivalente , Rüstungszerreißen und Äquivalente, Zerschmetternder Wurf additiv anstelle von mulltiplikativ.

Sprich mit genug ArP und allen Debuffs schafft man es den Boss auf 0 Rüstung zu bringen. Das sollte so nicht möglich sein.

Rüstungszerreißen alleine: Von 10643 Bossarmor auf 8514 runter.
RS + Feenfeuer: Von 8514 auf 7982
RS + FF + Zerschmetternder Wurf: Von 7982 auf 5853

Es sollte jedoch so aussehen:

no debuffs:
DebuffedArmor = 10643
ArPEffectivenessCap = 8625.17
DA = 15232.5 / (25875.5 - 8625.17*ArP)

5 sunder armor:
DebuffedArmor = 10643*(1-0.2) = 8514.4
ArPEffectivenessCap = 7915.63
DA = 15232.5 / (23746.9 - 7915.63*ArP)

5 sunder armor, faerie fire:
DebuffedArmor = 10643*(1-0.2)*(1-0.05) = 8088.68
ArPEffectivenessCap = 7773.73
DA = 15232.5 / (23321.18 - 7773.73*ArP)

5 sunder armor, faerie fire, shattering throw:
DebuffedArmor = 10643*(1-0.2)*(1-0.05)*(1-0.2) = 6470.94
ArPEffectivenessCap = 7234.48 -> 6470.94
**In game there is a rule that limits the cap so that it does not exceed the debuffed armor level.
DA = 15232.5 / (21703.44 - 6470.94*ArP)

Die betroffenen Fähigkeiten:

Minor (stacks with major)
Druid [Faerie Fire] / [Faerie Fire (Feral)]: -5%, also prevents stealth.
Hunter [Sting]: Wasp ability, -5%, also prevents stealth.
Warlock [Curse of Weakness]: -5%, also reduces melee attack power, each warlock can only have one active curse per target.

Major (stacks with minor)
Hunter [Acid Spit]: Worm (Exotic Hunter pet) ability, -10%, stacks twice.
Rogue [Expose Armor]: -4% per application, stacks up to 5 times.
Warrior [Sunder Armor]: -4% per application, stacks up to 5 times.

Extra:
Warrior [Shattering Throw]: -20%, known to stack with Sunder Armor, unsustainable.

Quellen:

http://web.archive.org/web/20101122054029/http://elitistjerks.com/f47/t37804-warrior_fury_compendium/#Armor_Penetration_Rating

http://www.arenajunkies.com/topic/65029-correct-pvp-arp-info-for-warrs/

http://wowwiki.wikia.com/wiki/Debuff

IDs:
Faerie Fire: https://db.rising-gods.de/?search=Faerie+Fire
Sting: https://db.rising-gods.de/?spells=-3.785
Curse of Weakness: https://db.rising-gods.de/?search=Curse+of+Weakness
Acid Spit: https://db.rising-gods.de/?search=Acid+Spit
Expose Armor: https://db.rising-gods.de/?spell=8647
Sunder Armor: https://db.rising-gods.de/?search=Sunder+Armor#abilities
Shattering Throw: https://db.rising-gods.de/?spell=64382