Activate the Equipment by paying its equip cost, attaching it to Crookshank Kobolds.
Activate Thermopod by sacrificing Crookshank Kobolds, adding .
When Crookshank Kobolds dies, Koll triggers, returning Crookshank Kobolds from your graveyard to your hand.
Cast Crookshank Kobolds by paying its mana cost.
Repeat.
This elegant loop turns zero-mana creatures into an endless engine of sacrifice and resurrection. With Koll, the Forgemaster granting a recursive safety net whenever an equipped creature dies, Crookshank Kobolds can be repeatedly cast for free after meeting the requirement. You then feed those Kobolds to Thermopod to generate red mana, funding the equipment cost needed to keep Koll's trigger primed for the next cycle.