This loop turns your mana-producing creature into a self-contained engine by letting Wirewood Symbiote continuously bounce itself to untap your key player, while Xenograft ensures that every creature you control counts as an Elf to satisfy the Symbiote's activation requirement. Because Xenograft turns the Symbiote itself into an Elf, you can simply replay Wirewood Symbiote for its green mana cost and immediately repeat the process. This creates an endless cycle of entering and leaving the battlefield, feeding you infinite storm count along the way.