Ixalan Vampires

Create three 1/1 white Vampire creature tokens with lifelink.

When this creature enters, you draw a card and you lose 1 life.

This creature doesn't untap during your untap step.

Whenever you gain life, untap this creature.

Other Vampires you control get +1/+1.

When Legion's Landing enters, create a 1/1 white Vampire creature token with lifelink.

When you attack with three or more creatures, transform Legion's Landing.

At the beginning of each upkeep, if you lost life last turn, put a +1/+1 counter on this creature.

When this creature dies, you gain life equal to its toughness.

{3}{W}{B}: Exile target creature. Then if there are three or more cards exiled with Profane Procession, transform it.

Flying

When this creature enters, target opponent loses 1 life and you gain 1 life.

Whenever this creature attacks, each opponent loses 1 life.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Each opponent sacrifices a creature of their choice. If you have the city's blessing, instead each opponent sacrifices half the creatures they control of their choice, rounded up.