This charming loop turns your menagerie into a self-sustaining engine by weaving together life-gain, creature generation, and explosive mana production. You begin by activating Ravenous Baloth to sacrifice a Beast, which pumps up your life total and triggers Trudge Garden. By paying the two mana requested by Trudge Garden, you produce a fresh 4/4 Fungus Beast token. That new arrival immediately awakens Mana Echoes, which looks across your board and floods your mana pool with colorless mana thanks to the shared creature types. Provided you have the right mix of extra Beasts and Fungi to outpace the initial investment, that mana feeds right back into Trudge Garden to fuel the next iteration of sacrifice, healing, and token spawning.