Spawn, Titan of Sorcery's Sin

When Spawn enters the battlefield, sacrifice it unless
it escaped.
Whenever Spawn enters the battlefield or attacks,
look at the top two cards of your library. Put one
into your hand and one into your graveyard.
Escape—{u}{u}{b}{b}, Exile five other cards from
your graveyard. (You may cast this card from your graveyard for its escape cost.)