Fenrir world breaking wolf

Trample, Haste Bound No Longer-When Fenrir enters the Battlefield, if you don’t control a creature named Jormungander you may have Jormungander enter the battlefield tapped. Ragnarok Howl - Whenever Fenrir attacks, creatures you control get +X/+0 until end of turn, where X is the number of creatures you control Partner with Jormungander As long as you control both Fenrir and Jourmungander: Creatures you control have menace and trample. At the beginning of your end step each opponent sacrifices a creature and losses 3 life.