Sunfire Aegis

Unique – Immolate: Taking or dealing damage activates this passive for 3 seconds. Deal 15 (+ 1.75% bonus health) magic damage every second to enemies within 325 (+ 100% bonus size) units, with the damage being increased by 25% against minions. This executes minions that would be killed by one more tick of damage. Damaging enemy champions or epic monsters with this effect grants a stack for 5 seconds that increases subsequent Immolate damage by 10%, stacking up to 6 times for a 60% increase.

Limited to 1 Immolate item.