Veronica, the Nights Fang

Vigilance, haste
Whenever a creature is dealt damage by a
vampire you control, put a turn counter on
it. If a creature has 3 or more turn counters
on it, gain control of that creature. It is a
vampire in addition to other types.
{t}, Exile 2 cards from your graveyard:
Create a 1/1 vampire creature token