This clever loop is held together by Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, whose back face grants your team persist, alongside Melira, Sylvok Outcast, whose static ability prevents -1/-1 counters from ever being placed on your creatures. Because Melira negates the counters that would normally come with persist, sacrificing Melira to Thermopod generates red mana while instantly returning her to the battlefield instead of staying dead. This creates an endless cycle that fuels infinite deaths, enters-the-battlefield triggers, and a boundless pool of red mana to seal the game.