Bloody Wager

You point at one chosen creature making a deal with death itself. A bet is placed on the creature's life, if it dies in the next three turns, you regain 2d10 hit points, if it lives it regains 2d10 hit points. If the creature is healed and the hit points exceed it's max hit points, it is given the rest in temporary hit points. 

At higher levels, the amount this spell heals increases to, 2d10 at 4th, 3d10 at 6th, and 4d10 at 8th.