This clever loop turns your battlefield into a self-sustaining Goblin engine by weaving together type-changing magic and sacrifice mechanics. Biotransference is the foundation here, transforming all your creatures into artifacts both on the battlefield and everywhere else so they seamlessly feed Krenko, Baron of Tin Street and Thermopod alike. When you sacrifice a creature to Thermopod to add red mana, its death triggers Krenko's ability; you simply use that generated mana to pay Krenko's cost, replacing your fallen soldier with a fresh haste-granting Goblin token ready to feed right back into Thermopod.