Supergiant

Hexproof, Skulk (This creature can't be blocked by creatures with greater power.)
{x}{u}{u}, {t}: Gain control of target creature with converted mana cost equal to X. Draw a card.
{x}{b},{t}: Sacrifice target creature with
converted mana cost equal to X. Gain X life.
"I merely pushed them to do what had to be done to
survive. To serve me." — Supergiant