Ark, Titan of Mist and Fire

When Ark enters the battlefield, sacrifice
it unless it escaped.
Whenever Ark enters the battlefield or
attacks, when it enters the battlefield you
may cast target instant or sorcery card 3
mana or less from your graveyard without
paying its mana cost then exile it and deal
two damage divided as you wish to any
targets
Escape -{r}{r}{u}{u}, Exile five other
cards from your graveyard.