Ennza, Wrathful Skyraider

Flying, first strike
Whenever Ennza, Wrathful Skyraider deals
combat damage to a creature, and it dies, create
X, 0/1 slaves where X equals the power of that creature, stage 1.
Sacrifice two slaves: Ennza, Wrathful Skyraider
gets +1/+0 until end of turn