Nixilis, The Enslaver

Flying.
{t}{r}{r}{b}{b}, Gain control of target creature. At
the end of your next end step remove all of it's existing abilities then return target creature to
its owner's control with: "{t}, sacrifice this card lose
a life." and base power and toughness 0/1. It
cannot gain anything.
"You think you can win against me? I am your fear."
—Nixilis, The Enslaver