This clever loop turns Squee, the Immortal into an endlessly recurrable engine by letting you cast him straight from exile or your graveyard for just two red mana. As you feed Squee and the token fodder created by Iraxxa, Empress of Mars's Paradox ability into Phyrexian Altar, you generate the exact mana needed to keep casting him. Meanwhile, Honest Rutstein quietly reduces the cost of creature spells and provides a useful recursion effect on entry, though Squee's own native casting permissions do the heavy lifting to keep this perpetual sacrifice cycle spinning.