Sorcerer Utility 22Crown of Flames

You adorn yourself with a halo of fire that flickers and dances. Whenever your lesser spells fail, the flames lick your foes.

Daily        Arcane, Fire
Minor Action      Personal

Effect: Until the end of the encounter, whenever you miss with a sorcerer at-will or encounter attack power, the target takes fire damage equal to your Charisma modifier.

Published in Arcane Power, page(s) 38.