Kon, Titan of Tide's Fury

When Kon enters the battlefield, sacrifice it
unless it escaped.
Whenever Kon enters the battlefield or attacks,
you may return target creature card from your graveyard to your hand, then gain life equal to
that targets converted mana cost.
Escape — {w}{w}{u}{u} Exile five other cards from
your graveyard. (You may cast this card from
your graveyard for its escape cost.)