Azra, Foulblooded

Flying, deathtouch, lifelink

When Azra, Foulblooded enters the battlefield, you lose
3 life.

Azra, Foulblooded's power is equal to the number of card
types among cards in all graveyards.

At the beginning of your end step, if you sacrificed three
or more permanents this turn, return Azra,
Foulblooded to the battlefield tapped.