The correct way to fight this battle is to watch out for and move accordingly to the following abilities:
Stage One: The Betrayal
Benedictus assaults Thrall with the powers of the Holy Light.
Righteous Shear: The Righteous Shear inflicts Holy damage to enemies within 10 yards of the target per stack of Righteous Shear.
Purifying Light: Benedictus forms three orbs of Purifying Light and raises them above his head, sending them to assault a nearby enemy, causing a Purifying Blast.
Purifying Blast: The Purifying Blast inflicts 80000 Holy damage to enemies within 6 yards.
Wave of Virtue: Benedictus summons a Wave of Virtue to sweep across the platform which inflicts 100000 Holy damage to nearby enemies, knocking them back.
Stage Two: Twilight Transformation
At 60% health Benedictus shows his true form, transforming into an agent of the Twilight and trapping Thrall in a Twilight Prison.
Twilight Shear: The Twilight Shear inflicts Shadow damage to enemies within 10 yards of the target per stack of Twilight Shear.
Corrupting Twilight: Benedictus forms three orbs of Corrupting Twilight and raises them above his head, sending them to assault a nearby enemy, causing a Twilight Blast.
Twilight Blast: The Twilight Blast inflicts 80000 Shadow damage to enemies within 6 yards.
Wave of Twilight: Benedictus summons a Wave of Twilight to sweep across the platform which inflicts 100000 Shadow damage to nearby enemies, knocking them back.
Thrall
Thrall will assist his allies, helping to combat Archbishop Benedictus.
Cleansing Spirit: Thrall Cleanses the Spirit, dispeling one stack of a magic debuff!
Chain Lightning: Thrall lashes out at the Purifying Light, jumping to another nearby target, destroying them.
Water Shell: The Water Shell protects allies from the Wave of Virtue and increases damage done by 100% while inside the Water Shell.
