Quetron, Wandering Protector

Deathtouch,Defender, Reach, Firststrike, Hexproof, Indestructible
{r/w},Destroy target creature who dealt damage this turn
{r/w}{r/w}{r/w} You gain 15 life
{r/w}{r/w}{r/w}{r/w}Gain control of target planeswalker