Jegantha, the Wellspring + Horde of Notions + Yahenni, Undying Partisan + Kratos, God of War

Jegantha, the Wellspring

Horde of Notions

Yahenni, Undying Partisan

Kratos, God of War

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Yahenni 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 relies on Jegantha, the Wellspring to provide the precise five-color mana required to fuel Horde of Notions, which can repeatedly yank Jegantha right back out of the graveyard and onto the battlefield for free. To keep the engine safe, you can feed Jegantha to Yahenni, Undying Partisan's sacrifice ability to grant Yahenni indestructible while triggering its growth and death counters infinitely. Meanwhile, Kratos, God of War rounds out the battlefield by granting all creatures haste, ensuring that your constantly resurrecting Jegantha is ready to tap for mana the very moment it returns.