Annoying Orange

Madness {w}{g}. (If you discard this card, you may cast it for its madness cost instead of putting it into your graveyard.)
When Annoying Orange enters the battlefield, exile target creature. You gain life equal to that creature's toughness.
{2}{w}{g}: Exile Annoying Orange. Return it to the battlefield under its owner's control at the beginning of the next end step.