Rypheo, Terror of the North

When this creature enters the battlefield, exile all of your other non-Demi-God creatures, add their P/T to Rypheo, Terror of the North's. Gaping maw {b}{3} ( consume one of your creatures (exile it) add it's power and toughness to this creature's )
"This only female of the Demi-god Krakens, is the one tasked with releasing the other 2, and then, their Father." -The Prophecy of Buskas, the Dragonkin