Jegantha, the Wellspring + Horde of Notions + Umbral Collar Zealot + Anger

Jegantha, the Wellspring

Horde of Notions

Umbral Collar Zealot

Anger

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Umbral Collar Zealot 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 relies on Jegantha, the Wellspring generating the exact five-color mana requirement—{W}{U}{B}{R}{G}—needed to fuel Horde of Notions' activated ability, which brings Jegantha right back from the graveyard for free. To keep this engine turning, Umbral Collar Zealot provides the necessary sacrifice outlet to put Jegantha into the graveyard while also helping you filter your draws with surveil. Meanwhile, having Anger in your graveyard with a Mountain in play ensures that your resurrected Jegantha immediately gains haste, allowing it to tap for mana the very moment it enters the battlefield again.