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 its existing abilities then return target creature to its owners control with "1. {t}, sacrifice this card lose a
life and 2. base power and toughness 0/1." It cannot
gain anything."
"You think you can win against me? I am your fear."
—Nixilis, The Enlsaver