Undo Damage

You reverse the flow of time for a creature you touch in a limited space. The last damage that creature took is healed, including lost limbs. This spell fails if the damage was dealt more than 1 minute ago or if the creature is dead, if the creature is dead the body is still restored.

Dying creatures healed this way remain unconscious. 

At higher levels. If cast at a higher level the time limit increases by 1 minute for each level beyond 2nd