This elegant loop turns the cycle of life and death into a self-sustaining engine using a clever interaction with morph costs. When you sacrifice Branchsnap Lorian to Shilgengar, Sire of Famine, it heads to the graveyard, but Yedora, Grave Gardener immediately rescues it by sliding it right back onto the battlefield face down as a Forest land. Because it is now a land, you can tap your newly sprouted Branchsnap Lorian for green mana, which instantly funds its own morph cost to turn it back face up and ready to be sacrificed all over again. As this cycle spins, Shilgengar happily hoards the sacrificed remains, flooding your board with an endless tide of Blood tokens.