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

Jegantha, the Wellspring

Horde of Notions

Ashnod's Altar

Anger

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 ingenious loop turns Jegantha, the Wellspring into an endless engine of life and death, fueled directly by Ashnod's Altar converting our legendary companion into a surplus of colorless mana. Once Jegantha hits the graveyard, Horde of Notions steps in to bypass its mana cost entirely, using the exact five-color blessing that Jegantha's tap ability provides to replay it straight from the graveyard. Meanwhile, having Anger resting comfortably in the graveyard ensures that Jegantha and any other creatures you control immediately enter with haste thanks to your control of a Mountain, letting you execute this recycling loop seamlessly over and over again.