This delightful loop turns the graveyard into a revolving door for the undead, utilizing Gravecrawler's recursive nature to fuel Nantuko Husk's appetite over and over again. The magic really happens thanks to Rooftop Storm, which completely eliminates Gravecrawler's mana cost and lets you redeploy it for free the moment it hits the bin. Because Gravecrawler checks only for *any* Zombie to satisfy its casting condition—and Nantuko Husk conveniently shares that creature type—you can feed the Husk infinitely to pump its power to astronomical heights while generating an endless stream of sacrifice and entering-the-battlefield triggers.