Activate Thermopod's second ability by sacrificing Dockside Extortionist, adding .
When Dockside Extortionist dies, Enduring Renewal triggers, returning Dockside Extortionist to your hand from your graveyard.
Cast Dockside Extortionist by paying 1.
When Dockside Extortionist enters the battlefield, it triggers, creating at least one Treasure artifact token.
Activate a Treasure by tapping and sacrificing it, adding 1.
Repeat.
If opponents control two or more artifacts and/or enchantments, this combo nets infinite Treasure tokens and colored mana.
This loop relies on Enduring Renewal's replacement effect forcing you to reveal your library instead of drawing, while its crucial second ability ensures that any creature dying on your battlefield simply bounces straight back to your hand. You leverage this recurring safety net by using Thermopod as a reliable sacrifice outlet that turns your creature into red mana. With Dockside Extortionist providing the initial spark by generating an abundance of Treasure tokens upon entering the battlefield—provided your opponents have enough artifacts and enchantments to feed it—you can easily fund its re-casting and loop the entire process indefinitely.