Jegantha, the Wellspring + Horde of Notions + Viscera Seer + Fires of Yavimaya

Jegantha, the Wellspring

Horde of Notions

Viscera Seer

Fires of Yavimaya

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Viscera Seer 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 engine utilizes Jegantha, the Wellspring as both its own fuel and its own recurrence target, tapping it for the exact five-color mana required to activate Horde of Notions' ability from the graveyard. Because Jegantha's mana is restricted and cannot pay generic costs, Horde of Notions steps in to cast it straight from the graveyard for free every single time. Meanwhile, Viscera Seer acts as the necessary sacrifice outlet to bin Jegantha back into the graveyard while granting you infinite scry triggers, and Fires of Yavimaya passively ensures that Jegantha gains immediate haste upon reentry so it can be tapped again right away.