Sanguine Succubus

If your life total is greater than your starting life
total, Sanguine Succubus has haste.
{t}: Gain control of target non-vampire creature.
It becomes a black vampire in addition to its
other colors and types.
Ryuk: I really like this one, Light.
Light: She's controlling your mind, Ryuk!
Ryuk: Nah, she's just really cute... and covered
in blood. My favorite!