Invoker’s Blaze

Paragon Tier
Prerequisite: 11th level, invoker
Benefit: You gain a +2 feat bonus to damage rolls with divine attack powers that have the fire keyword or the radiant keyword. While you are bloodied, this feat bonus increases to +4.
At 21st level, the feat bonus increases to +3 (or +6 while bloodied).

Published in Divine Power, page(s) 140.