Activate Thermopod by sacrificing another creature.
When the creature dies, Pitiless Plunderer triggers, creating a Treasure token and a creature token due to Quina.
Repeat.
This delightful loop turns a single sacrifice into a self-sustaining engine by letting Thermopod convert any expendable creature into red mana. Each death triggers Pitiless Plunderer to spawn a Treasure token, which is immediately amplified by Quina, Qu Gourmet's replacement effect into an extra 1/1 green Frog creature token alongside the Treasure. You can then feed these newly generated Frogs right back into Thermopod to fuel infinite colored mana, death triggers, and artifact tokens.