When the need is great, you pull an amazing trick out of thin air.

Daily   ✦     Healing
Minor Action      Personal

Effect: Regain all of your hit points and healing surges, automatically save against all effects on you, recover all expended encounter powers, or recover all expended daily powers except this one. Once you use this power, you cannot recover it except by taking an extended rest.

Published in Player's Handbook, page(s) 174.