Jegantha, the Wellspring + Horde of Notions + Thermopod + Dynaheir, Invoker Adept

Jegantha, the Wellspring

Horde of Notions

Thermopod

Dynaheir, Invoker Adept

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Thermopod by sacrificing Jegantha.
3. Activate Horde of Notions by paying , causing you to cast Jegantha from your graveyard without paying its mana cost.
4. Repeat.

This clever loop harnesses Jegantha, the Wellspring as both the mana source and the recurring fuel, tapping it for the exact five-color requirement needed to activate Horde of Notions. Because Horde of Notions lets you play that Elemental from your graveyard for free, Jegantha pops right back onto the battlefield ready to repeat the cycle. Meanwhile, Thermopod acts as your sacrifice outlet to clean Jegantha away each time, simultaneously refunding your investment by turning those sacrifices into a growing reserve of red mana. While Dynaheir, Invoker Adept doesn't strictly need to fire off a copied ability for the core loop to spin, her presence keeps your board aggressive and your options open.