Doorkeeper

Destroy target nonblack creature.

Flying

Outlast W (W, T: Put a +1/+1 counter on this creature. Outlast only as a sorcery.) Each creature you control with a +1/+1 counter on it has lifelink.

Outlast W (W, T: Put a +1/+1 counter on this creature. Outlast only as a sorcery.) Each creature you control with a +1/+1 counter on it has flying.

Outlast 1W (1W, T: Put a +1/+1 counter on this creature. Outlast only as a sorcery.) Each creature you control with a +1/+1 counter on it has first strike.

Whenever you gain life, put a +1/+1 counter on this creature.

Flying When this creature enters, you gain 3 life.

At the beginning of each end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying.