Xerath, Betrayer of Shurima

Menace
When Xerath enters the battlefield, sacrifice it unless it escaped.
Whenever Xerath enters the battlefield or attacks, draw a card then discard a card. If you discarded a non-land card this way, you may have Xerath deal 3 damage to any target.
Escape — {u}{b}{r}{r} Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)