Lord Harkon of Castle Volkihar

Lifelink, flying, shadow

Whenever a creature an opponent controls dies,
create a Blood token.

Sacrifice two Blood tokens: Choose one—
•Create a 4/4 black Gargoyle creature token with lifelink.
•Gain control of target creature an opponent controls
until end of turn. Untap that creature. It gains haste
until end of turn.