Reduced healing

A number of Player abilities and talents cause reduced healing debuffs that reduce the effectiveness of healing by a certain percentage. They are sometimes known as Mortal Wounds debuffs, after the Warrior's effect.

• Demon Hunter
• Mortal Dance (Havoc PvP Talent)
• Hunter
• Monstrous Bite (Devilsaur ability)
• Widow Venom
• Monk
• Rising Sun Kick (Windwalker)
• Rogue
• Wound Poison
• Warlock
• Legion Strike (Felguard ability)
• Warrior
• Mortal Strike (Arms)
• Wild Strike (Fury)

Some other sources of reduced healing effects (particularly by NPCs and Bosses) include:

• Curse of the Deadwood, cast by Deadwood mobs in Felwood.
• Gluth's Mortal Wound
• Watchkeeper Gargolmar's Mortal Wound

These boss abilities block healing completely:

• Chimaeron's Mortality
• Blackwater Behemoth's Darkest Depths
• Helya's Dark Hatred
• Hungering Destroyer's Hungering Destroyer

There are also debuffs that reduce the effectiveness of healers to heal others.

• Anetheron's Carrion Swarm