Death

At the beginning of your end step, target
opponent gains control of up to one target
creature you control. Put two +1/+1 counters
on it and tap it. It's goaded for the rest of
the game and it gains "This creature can't be
sacrificed." (It attacks each combat if able and
attacks a player other than you if able.)
Whenever a creature you own but don't
control attacks, you draw a card.