Activate Thermopod's second ability by sacrificing Scrap Trawler, adding .
When Scrap Trawler dies, it and Anax trigger.
Resolve the Anax trigger, creating a 1/1 Satyr creature token.
Resolve the Scrap Trawler trigger, returning Myr Retriever from your graveyard to your hand.
Cast Myr Retriever by paying 1.
Activate Thermopod's second ability by sacrificing Myr Retriever, adding .
When Myr Retriever dies, it and Anax trigger.
Resolve the Anax trigger, creating a 1/1 Satyr creature token.
Resolve the Myr Retriever trigger, returning Scrap Trawler from your graveyard to your hand.
Activate Thermopod's second ability by sacrificing the Satyr, adding .
Cast Scrap Trawler by paying 2.
Repeat.
This clever loop turns a continuous cycle of recycling and sacrifice into an unstoppable engine, fueled entirely by the mana-generating ability of Thermopod. As you feed your artifacts to Thermopod, Scrap Trawler triggers upon its own death to fish Myr Retriever back from the graveyard, while Myr Retriever reciprocates by retrieving Scrap Trawler in an endless loop. Meanwhile, Cloud Key discounts the artifact spells so you can recast them indefinitely, and Anax, Hardened in the Forge watches the carnage to flood the board with Satyr tokens alongside all that infinite red mana.