By funneling greater power into your attack, you ensure its effect is not wasted.

Daily
Free Action      Personal

Trigger: You roll a 1 on any damage die when you hit with an area or close attack power

Effect: You reroll any result of 1 or 2 on a damage die until the die roll is something other than 1 or 2.

Published in Dragon Magazine 382, page(s) 101.