Throgg, the Infatuated

First Strike, Haste
When Throgg, the Infatuated enters the battlefield, choose a creature an opponent
controls. When that creature leaves the battlefield, sacrifice Throgg. At the beginning
of the chosen creature's controller's attack step,
untap Throgg and that player gains control of it
until end of turn.
He stole the enemy general's horses, land and riches,
but most of all, his heart.