Corruption: Accelerated – When Corrupted Blood reaches 25%, a player gains Corruption: Accelerated, which rapidly increases their Corruption level.

Corruption: Sickness – When Corrupted Blood reaches 50%, players periodically become violently ill. They vomit and inflict 19500 to 20500 Shadow damage to players within a 0 yard long 20 degree cone in front of them. Players hit by this vile spew suffer increased Corruption.

Corruption: Malformation – When Corrupted Blood reaches 75%, the corruption is so thorough that a tentacle Malformation erupts from a player's back. The tentacle periodically casts Shadow Bolts at the player's allies, inflicting 24375 to 25625 Shadow damage.

Corruption: Absolute – When Corrupted Blood reaches 100%, players fully transform into faceless horrors. While in this state players cannot be healed, but inflict 100% additional damage and cast spells instantly.

Conversion – Cho'gall beckons to the weak of mind, causing random players to abandon their loyalties and begin to Worship Cho'gall. Worshipping Cho'gall grants him one application of Twisted Devotion every 3 sec.

• Twisted Devotion – Cho'gall gains strength from his converted followers, increasing his damage dealt by 10% for 15 sec. This effect stacks.

Fury of Cho'gall – Cho'gall blasts his current target, inflicting 19500 to 20500 Shadow and 19500 to 20500 Physical damage, and increasing Physical and Shadow damage taken by 20% for 1 min.

Flame's Orders – Cho'gall calls forth a Fire elemental and absorbs the elemental into his Twilight Hammer, empowering it with Flaming Destruction.

On Heroic difficulty Cho'gall gains one additional stack of Flaming Destruction for each 10% health remaining on the elemental when it is absorbed.

• Flaming Destruction – While Flame's Orders empowers Cho'gall's hammer, his melee attacks inflict 23400 to 24600 additional Fire damage to his current target and splashes molten fire that creates a burning Blaze nearby.

  • Blaze – A 5 yard radius pool of burning flames inflicts 12675 to 13325 Fire damage every 1 sec on players standing within the fire. The Blaze lasts 25 sec.

Shadow's Orders – Cho'gall calls forth a Shadow elemental and absorbs the elemental into his Twilight Hammer, imbuing it with Empowered Shadows.

On Heroic Difficulty Cho'gall gains one stack of Empowered Shadows for each 10% health remaining on the elemental when it is absorbed.

• Empowered Shadows – While Shadow's Orders empowers Cho'gall's hammer, it emits bursts of nether power every 3 sec. The hammer deals 19500 to 20500 Shadow damage to players within 50000 yards.

Summon Corrupting Adherent – Cho'gall summons a Corrupting Adherent from one of twilight portals at the sides of the room.

On 25-player Heroic difficulty, Cho'gall activates both portals, summoning two Corrupting Adherents simultaneously.

• Corrupting Adherent – Cho'gall summons these faceless minions of the Old Gods to hasten the doom of his foes.

  • Depravity – The Corrupting Adherent inflicts 19500 to 20500 Shadow damage to players within 20 yards, raising their Corruption levels significantly.
  • Corrupting Crash – The Corrupting Adherent lobs a shadow missile at the ground beneath a random player, inflicting 35100 to 36900 Shadow damage to all players within 8 yards of the impact. Players hit by the Corrupting Crash gain Corruption.
  • Spilled Blood of the Old God – When Cho'gall casts Fester Blood, corpses of Corrupting Adherents dissolve into pools of black bile. Any players in contact with these pools suffer 14625 to 15375 Shadow damage per 1 sec. and gain Corruption.

Fester Blood – Cho'gall festers the blood of all Corrupting Adherents, causing pools of Spilled Blood of the Old God to form into animated oozes. Fester Blood also causes the dark blood of any living Corrupting Adherents to boil, causing the Festering Blood effect.

• Festering Blood – When Cho'gall uses Fester Blood, the dark blood of any living Corrupting Adherents sprays out from their bodies, inflicting 34125 to 35875 Shadow damage every 2 sec to all players within 20 yards. Players damaged by this ability will gain Corruption.
• Blood of the Old God – The Corrupting Adherents' blood congeals into numerous vile oozes, each of which fixates on a random player and moves towards them. The animated Blood of the Old God raises the Corruption level of any target they melee.

Fury of Cho'gall – Cho'gall blasts his current target, inflicting 19500 to 20500 Shadow and 19500 to 20500 Physical damage, and increasing Physical and Shadow damage taken by 20% for 1 min.

Corruption of the Old God – Cho'gall fills the room with tendrils of shadowy corruption, inflicting 4875 to 5125 Shadow damage every 2 sec to all players and gradually increasing their Corruption level. Players suffer 2% additional damage from Corruption of the Old God for each point of their Corruption.

Darkened Creations – Cho'gall causes tentacles to erupt from inky clouds on the ground.

• Darkened Creation – Darkened Creations continually try to channel Debilitating Beam on a random player.

  • Debilitating Beam – Debilitating Beam reduces a target's healing and damage done by 75% and inflicts 6240 to 6560 Shadow damage every 1 sec for 10 sec.

    On Heroic difficulty, Debilitating Beam also causes Corrupted Blood.