Astin, Titan of Worlds End

When Astin enters the battlefield, sacrifice it
unless it escaped.
Whenever Astin enters the battlefield or attacks,
each opponent exiles a nonland card from their graveyard, then you may put a land card from
your graveyard onto the battlefield.
Escape -- {b}{b}{g}{g}, Exile five other cards from
your graveyard. (You may cast this card from
your graveyard for its escape cost.)