Jegantha, the Wellspring + Horde of Notions + Ashnod's Altar + Akroma's Memorial

Jegantha, the Wellspring

Horde of Notions

Ashnod's Altar

Akroma's Memorial

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Ashnod's 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 engine relies on Jegantha, the Wellspring to self-fund its own recursion through Horde of Notions, since Jegantha's unique activation yields the exact five-color mana required to pay Horde of Notions' ability. Ashnod's Altar acts as the necessary outlet, converting Jegantha into a pair of colorless mana while sending the Elk Avatar straight to the graveyard so it can be re-cast. Meanwhile, Akroma's Memorial bestows massive keyword upgrades to your creatures across the board, though the true triumph here is the seamless loop of life and death that generates endless sacrifices and storm count.