Darkness, Prince of Night

Vigilance, Menace

Nonblack creatures get -1/-1

Corrupt the innocent-{b}{b}{b},{t}: Gain control of target creature with power 3 or less unless its controller pays life equal to its mana value. It becomes black in additions to its other colors.
Enough! -{p/b}{p/b}, Sacrifice a permanent: Darkness gains indestructible until end of turn.

"What is light without dark? What are you without me?"—Darkness