Jegantha, the Wellspring + Horde of Notions + Thermopod + Mass Hysteria

Jegantha, the Wellspring

Horde of Notions

Thermopod

Mass Hysteria

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 loop transforms Jegantha, the Wellspring's color-pie-spanning mana production directly into profit by tapping the Elk for the exact five-color requirement needed to activate Horde of Notions. While Mass Hysteria ensures Jegantha and any other creatures instantly gain haste upon return, it is Thermopod that acts as the essential engine, turning that newly resurrected creature into a sacrifice target to yield a red mana while fueling the process. Because Horde of Notions lets you replay Jegantha straight from the graveyard without paying its mana cost—and Jegantha's restriction only bars generic mana spending, bypassing the colored activation cost entirely—you can endlessly cycle Jegantha to generate infinite red mana alongside an infinite stream of sacrifice and death triggers.