Skulprot, Shadow's Claw

When Skulprot, Shadow's Claw enters the battlefield, if an opponent controls more lands
than you, you may search your library for a
Swamp card, put it onto the battlefield, then
shuffle your library.
Whenever a Swamp enters the battlefield, black creatures you control get +1/+1 and gains afflict 1
and deathtouch until end of turn.