Sturvuz, Unstable Creation

When Sturvuz, Unstable Creation enters the
battlefield and it wasn't unearthed, sacrifice it.
Prowess.
Whenever Sturvuz, Unstable Creation enters the
battlefield or deals combat damage to a player,
Sturvuz, Unstable Creation deals damage equal to
the number of spells you cast this turn to any target.
Unearth {u}{r}