Corellon's mastery of the arcane allows you to choose between empowerment or defense for you and all your allies in the battle.

Daily   ✦     Divine
Minor Action      Close burst 10

Target: You and each ally in the burst

Effect: Until the end of the encounter, at the start of each target's turn, the target can choose to gain either a +2 power bonus to implement attack rolls or a +4 bonus to Fortitude, Reflex, and Will until the start of his or her next turn.

Published in Divine Power, page(s) 152.