Sjøuhyre, Spawn of the Abyss

Whenever Sjouhyre, Spawn of the Abyss attacks, target Surface creature gets -2/-2 until end of
turn.
Whenever a Surface creature dies, its controller
mills 3 cards.
If Sjouhyre, Spawn of the Abyss would die, if an opponent has fewer cards in their library than
you, instead put it into your library third from
the top.