Jegantha, the Wellspring + Horde of Notions + Thermopod + Fervor

Jegantha, the Wellspring

Horde of Notions

Thermopod

Fervor

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 ingenious loop harnesses Jegantha, the Wellspring and its restriction-heavy five-color mana ability, turning that exact limitation into fuel by channeling the resulting {W}{U}{B}{R}{G} directly into Horde of Notions' activation cost. By feeding Jegantha to Thermopod, you generate the red mana needed to help fund the cycle while sending the Elk back to the graveyard just in time for Horde of Notions to pull it right back out. Meanwhile, Fervor quietly ensures that Jegantha enters the battlefield with immediate readiness to tap again, completing a seamless engine that recycles the companion endlessly for boundless sacrifice and death triggers.