Depth Guard

Vigilance, Lifelink, Affinity for Vampires

When Depth Guard enters the Battlefield, place X
+1/+1 counters on any number of Creatures you
control, where X is the number of Vampires on
the Battlefield.

When Depth Guard leaves the Battlefield, you can
remove any number of +1/+1 counters from
Creatures you control and Draw that many cards.