Fabian, Shadow Stalker

Lifelink, Deathtouch
Vampires and Clerics you control get +1/+1
{2}{w/b}{t}: Creatures you control gain lifelink and deathtouch until end of turn.
Whenever another Vampire or Cleric enters the battlefield under your control,
you may pay {2}, if you do, you gain life
equal to its mana value