Galvanos, Titan of the Tempest

When Galvanos enters the battlefield, sacrifice it
unless it escaped.
Whenever Galvanos enters the battlefield or
attacks, scry 2 and reveal the top card of your
library. Galvanos deals damage to any target
equal to the revealed card's mana cost.
Escape—{u}{u}{r}{r}, exile five other cards from
your graveyard.