This elegant loop hinges on a clever intersection of resurrection mechanics to continuously recycle a grounded creature through the graveyard. While Carrion Feeder acts as the willing executioner to continuously sacrifice your fodder, Luminous Broodmoth and the persist ability found on the reverse side of Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight take turns catching the fallen creature. Because Luminous Broodmoth only triggers on creatures *without* flying, its resurrection adds a flying counter; once that creature dies again, the newly acquired flying means the Broodmoth can no longer trigger, allowing persist to step in and bring it back with a -1/-1 counter instead. Since that counter immediately negates the flying counter (and vice versa, resetting its eligibility), you can endlessly alternate between these two resurrection effects to churn out infinite sacrifices and pump Carrion Feeder to astronomical proportions.