*Merged MaNGOS [8458], [8475], [8476] by ogeraisi, thanks to all authors :)

--HG--
branch : trunk

src/game/SpellAuras.cpp

@@ -333,7 +333,7 @@ pAuraHandler AuraHandler[TOTAL_AURAS]=
     &Aura::HandleNoImmediateEffect,                         //277 SPELL_AURA_MOD_ABILITY_AFFECTED_TARGETS implemented in spell::settargetmap
     &Aura::HandleAuraModDisarm,                             //278 SPELL_AURA_MOD_DISARM_RANGED disarm ranged weapon
     &Aura::HandleAuraInitializeImages,                      //279 SPELL_AURA_INITIALIZE_IMAGES
-    &Aura::HandleNoImmediateEffect,                         //280 SPELL_AURA_MOD_TARGET_ARMOR_PCT       implemented in Unit::CalcArmorReducedDamage
+    &Aura::HandleModTargetArmorPct,                         //280 SPELL_AURA_MOD_TARGET_ARMOR_PCT
     &Aura::HandleNoImmediateEffect,                         //281 SPELL_AURA_MOD_HONOR_GAIN_PCT implemented in Player::RewardHonor
     &Aura::HandleAuraIncreaseBaseHealthPercent,             //282 SPELL_AURA_INCREASE_BASE_HEALTH_PERCENT
     &Aura::HandleNoImmediateEffect,                         //283 SPELL_AURA_MOD_HEALING_RECEIVED       implemented in Unit::SpellHealingBonus
@@ -6998,3 +6998,10 @@ bool AuraEffect::IsPeriodicTickCrit(Unit const * pCaster) const
     return false;
 }
 
+void Aura::HandleModTargetArmorPct(bool apply, bool Real)
+{
+	if(m_target->GetTypeId() != TYPEID_PLAYER)
+		return;
+
+	((Player*)m_target)->UpdateArmorPenetration();
+}