By transforming Enduring Vitality into an enchantment creature using Zur, Eternal Schemer, you unlock a clever loop where it can tap for mana and then be fed directly to Thermopod to produce red mana. When Enduring Vitality hits the graveyard, its own death trigger immediately brings it back to the battlefield as a non-creature enchantment, setting the stage for Zur, Eternal Schemer to animate it all over again. While Barbarian Class sits on the board with its dice-modifying passive ability and passive haste grant at level 3, the true engine runs on this endless resurrection loop that generates infinite creature sacrifices, deaths, and leaves-the-battlefield triggers without ever permanently losing your core piece.