Jegantha, the Wellspring + Horde of Notions + Phyrexian Altar + Maelstrom Wanderer

Jegantha, the Wellspring

Horde of Notions

Phyrexian Altar

Maelstrom Wanderer

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Phyrexian Altar 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 turns the five-color activation of Horde of Notions into an engine for infinite recursion by taking advantage of Jegantha, the Wellspring and its unique mana restriction. Because Jegantha can produce the exact five-color mana requirement for Horde of Notions without leaving generic mana behind, you can continuously pull it straight out of your graveyard. Phyrexian Altar acts as the sacrificial outlet that feeds this cycle, turning Jegantha into the exact colored mana needed to pay for the Horde's ability while also generating a continuous stream of sacrifice and death triggers. Meanwhile, Maelstrom Wanderer sits comfortably on the battlefield granting haste to your loop, ensuring Jegantha is immediately ready to tap for mana the very moment it returns.