Backlash

Backlash is a Templar Class Ability, found in the Dawn’s Wrath Skill Line.

Backlash
2160 Target: Enemy
Summon an expanding beam of pure sunlight to doom an enemy, dealing 1161 Magic Damage immediately and marking them for 6 seconds. After the duration ends, the sunlight bursts, dealing 1284 Magic Damage to the enemy, which increases based on the amount of damage you dealt to them over the duration, up to 200%. You can have only one Backlash active at a time.

Backlash is a Templar base skill. Its two morphs are Purifying Light and Power of the Light.