This clever loop relies on the interaction between a sacrifice outlet and a persistent resurrection engine protected by an absolute counter-prevention effect. While Bloodflow Connoisseur serves as the engine's hungry maw—converting fallen allies into permanent growth—Melira, Sylvok Outcast provides the crucial static immunity that prevents -1/-1 counters from ever sticking to your creatures. Meanwhile, Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight anchors the battlefield in its twilight form, granting every other nontoken creature persist so they can continually bounce back from the graveyard whenever they perish.