Harkon of Castle Volkihar

Whenever a Vampire you control deals combat
damage to a Non-Vampire creature, gain control
of that creature for as long as you control Harkon.
{b}{b}, {t}: Sacrifice a creature you own and
control and pay 5 life: create a 5/5 black
Vampire Noble creature token with flying
and lifelink.
{3}{b}{r}, {t}: Transform Harkon