| Heroic | | Deadly |
| Important | | Tank |
| DPS | | Healer |
| Interruptible | | Magic |
| Curse | | Poison |
| Disease | | Enrage |
Tooltips and dungeon journal reflect ability values for one encounter version. Please refer to "Effect" section on spell pages to see values for all raid sizes and difficulties.
Stage One: The Light Will Consume You!
Benedictus assaults Thrall with the powers of the Holy Light.
Righteous Shear
– Archbishop Benedictus targets a random player with Righteous Shear, inflicting Holy damage to players within 10 yards of the target per stack of Righteous Shear.
Purifying Light
– Archbishop Benedictus forms three orbs of Purifying Light and raises them above his head, sending them to assault a nearby player and causing a Purifying Blast.
Purifying Blast
– Archbishop Benedictus' Purifying Blast inflicts 48750 to 51250 Holy damage to players within 6 yards.
Wave of Virtue
– Archbishop Benedictus summons a Wave of Virtue to sweep across the platform, inflicting 97500 to 102500 Holy damage to nearby players and knocking them back.
Stage Two: Drown in Shadow!
At 60% remaining health Archbishop Benedictus casts Twilight Epiphany, showing his true form, transforming into an agent of the Twilight and trapping Thrall in a Twilight Prison.
Twilight Shear
– Archbishop Benedictus targets a random player with Twilight Shear, inflicting Shadow damage to players within 10 yards of the target per stack of Twilight Shear.
Corrupting Twilight
– Archbishop Benedictus forms three orbs of Corrupting Twilight and raises them above his head, sending them to assault a nearby player and causing a Twilight Blast.
Twilight Blast
– Archbishop Benedictus' Twilight Blast inflicts 48750 to 51250 Shadow damage to players within 6 yards.
Wave of Twilight
– Archbishop Benedictus summons a Wave of Twilight to sweep across the platform, inflicting 97500 to 102500 Shadow damage to nearby players, knocking them back.
Thrall
– Thrall will assist his allies in combat with Archbishop Benedictus.
Cleanse Spirit
– Thrall cleanses the spirit, dispelling one stack of a magic effect.
Chain Lightning
– Thrall lashes out at the Purifying Light with Chain Lightning, destroying them.
Water Shell
– Thrall's Water Shell protects allies from the Wave of Virtue and increases their damage done by 100%.
Heroic Difficulty Only
Hour of Twilight is only available on Heroic Difficulty.