Fortune favors you; stars portending uncertainty lean in your favor and frown upon your foes.

Encounter   ✦     Arcane
Minor Action      Personal

Effect: Until the end of your next turn, anyone who attacks you must roll two dice and take the lower result. Each time an attack misses due to this effect, you gain a cumulative +1 power bonus to your next attack roll.

Published in Player's Handbook, page(s) 138, Class Compendium.