Firestorm

Your Firestorm causes an additional point of aggravated damage each turn, for a total of 3 points of aggravated damage

Spend 1 Blood and use your standard action to summon forth a Firestorm of destruction. Firestorm works like Pillar of Fire, but affects an area up to 20 steps across and can be cast on a location up to 40 steps away. Unlike Pillar of Fire, Firestorm lasts for the next five turns, or until you decide to extinguish it, move more than 50 steps away from it, fall into torpor, or die.

Damage from Firestorm doesn’t stack with itself or with other area-effect powers. If you have more than one such power affecting the same area, only the highest damage effect applies