Rashka, Eater of Souls

Eminence: {b}{u}{w} Pay 3 life: Exile target
creature you control, return that creature to the
battlefield under your control, the next time
you exile another creature.
Whenever another creature enters the battlefield
from exile, you gain 1 life and draw a card.
If a spirit entered the battlefield this way,
put a +1/+1 counter on Rashka, Eater of Souls.