Radiant Power

Heroic Tier
Prerequisite: Deva
Benefit: When you make an implement attack, you can take a -2 penalty to the attack roll. If you do so and the attack hits, it deals 2 extra radiant damage. The extra radiant damage increases to 4 at 11th level and 6 at 21st level.

Published in Player's Handbook 2, page(s) 188.