Hellboy

When Hellboy enters the battlefield, you
may search your library for a card named
Right Hand of Doom and put it onto the battlefield equipped to this creature.
At the beginning of your end step, if
Hellboy is in your graveyard or in exile, you
may return it to your hand.
"It's my goddamn life, and I'll do what I want with
it. You don't like that, kill me if you can!"