The pending on the passive Trait and the used Ability (Special attack) one or more Buffs are removed from the target enemy or even from several enemies. The Purge effect is indicated by a fly-off text REMOVED and a "whooosh" animation during the battle.
Removing buffs from the opponent can have a decisive impact on the fight.
Caster Runes can purge buffs on hit.
The following heroes have or can inflict/apply Purge:
Cataclysmic Conflagration (Special Attack): Sacrifices self, dealing shield-piercing damage to all enemies with 100% base chance to purge all buffs and add Soulfire Burn to enemies hit. Removes all enemy corpses. Can't be dodged.
Cauterize (Special Attack): Heals target ally and cleanses all debuffs on them. If targeted on an enemy, ranged fire attack that purges all buffs on hit. On killing blow or targeting a corpse, the corpse is removed. Ignores Taunt when targeting.
Into the Pit (Special Attack): Buffs team +ATK and Banishes target enemy, purging all Buffs and rendering them inactive for 2 turns, then returning them to the dungeon at 50% of their current HP (Epic Bosses cannot be Banished). Banished enemies count as being defeated when no other enemies are active. Starts Powered.
Annihilation Beam (Special Attack): Purges all Buffs and Debuffs on target enemy, then does a Ranged Spirit attack that sets their HP to a % of their current HP. The percentage of health that the enemy is set to scales with the ability's level and hero's Skill (~10% at level 80). NOTE: This attack does not 'damage' the target in the traditional sense, and does not result in Observation being applied as a result.
Chain Lightning (Special Attack): Ranged Lightning attack on all enemies with chance to Shock. Deals damage based on the amount of targets hit. Consumes all stacks of Storm Power, purging Buffs on all enemies hit for each Stack of Storm Power.
Purging Pyre (Special Attack): Purges 3 Buffs, then does a Ranged Fire attack on all enemies with a chance to Burn. Consuming Burns reduces the cooldown of this ability. Heads or Tails (Basic Attack): A Basic Melee Physical Bite attack that purges 1 Buff on CRIT.
Taste for Brains (Special Attack): Ranged Dark attack that purges all Buffs, heals self and allied Undead and buffs their Max HP. When dealing a killing blow or targeting an enemy corpse, the corpse is removed.
Envious Rampage (Special Attack): Melee Physical attack on target and 2 random enemies that Lifesteals and has a chance to steal a Buff on hit. Theft of Grace (Special Attack): Melee Spirit attack for [150% ATK] base damage, will purge up to [1/2/3] buffs on target and add [1/2/3] elemental buffs to all allies. The number of purged and added buffs depends on the rank (I/II/III) of this special attack. The elemental buffs are I=Hunter, II=Resistance, III=Touch. The elemental buffs will be the same type as the target. Example: If a Dark enemy is attacked the buffs will be: Dark Rancor I, Disease Resistance, and Disease Touch.
Void Assault (Special Attack): Melee Physical Attack on each enemy with a chance to Wound and add Null-Magic to each enemy, preventing the next buff on the enemy. This ability is considered single target. Double Daggers (Basic Attack): Two Armor-Piercing Melee Physical attacks on target enemy with a 100% base chance to purge a buff Spellseeker Weapons (Trait): Allies Melee attacks have a chance to purge a buff on basic attack and can’t be retaliated against by Melee attackers. Dispelling Strike (Special Attack): Armor & Shield-Piercing Melee Physical attack on target enemy. Purges all buffs and Silences the target, ignoring immunities. Starts Powered.
Whirling Staff (Special Attack): Melee Physical attack on all enemies. Apllies Monkey Business to all allies, preventing the next attack with a Sun Wukong clone and retaliating if the clone survives. Snow Day: Purges a buff from all enemies.
Tongue Lash (Special Attack): Ranged Nature attack on all enemies that never misses and can't be dodged. Purges all buffs on each enemy hit and adds one random buff for each purged buff on all allies. These buffs last until this Hero's next turn.
Snakes on the Plains (Special Attack): [2/3/3] Melee physical attacks on all enemies for [?% ATK] base damage that purges [1/1/2] buffs from each target with a chance to add Venom. The number of attacks and purged buffs depend on the rank (I-III) of this special attack.