Qwinn, Titan of Nightmares

Indestructible
Whenever Qwinn, Titan of Nightmares attacks, target creature gets -2/-2 until the end of turn.
Whenever a creature an opponent controls dies, you gain 2 life and he loses 2 life.
If an opponent has less than 10 life, Qwinn, Titan of Nightmares has Menace.