This clever loop centers around Grinning Ignus bouncing itself back to your hand for red mana while generating extra colorless energy. Ordinarily, recast costs would drain your resources, but Planar Gate steps in as a cost reducer to make recasting the Ignus cheaper, while Heartstone synergizes by shaving down the activation cost of Prismite. Prismite acts as our color filter, converting that floating colorless mana into the red needed to keep the cycle going indefinitely. Together, this machinery turns a self-bouncing elemental into an endless stream of creature triggers and storm count.