Jegantha, the Wellspring + Horde of Notions + Woe Strider + Kratos, God of War

Jegantha, the Wellspring

Horde of Notions

Woe Strider

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 Woe Strider 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 infinite recursion loop relies on Woe Strider to continually feed our key pieces to the graveyard, setting up an engine fueled by Horde of Notions and Jegantha, the Wellspring. By tapping Jegantha, the Wellspring to generate the exact five-color mana requirement, we can immediately pay Horde of Notions' ability cost to pull Jegantha, the Wellspring right back out of the graveyard onto the battlefield without paying its mana cost. Woe Strider then sacrifices Jegantha, the Wellspring to trigger the loop anew while letting us smooth out our draws with infinite scry 1 triggers. Though Kratos, God of War isn't strictly required for the loop to spin, its presence means that any hasty beatdowns can be punctuated by the sheer volume of entering and leaving the battlefield events happening all at once.