Jegantha, the Wellspring + Horde of Notions + Altar of Dementia + Shang-Chi, Master of Kung Fu

Jegantha, the Wellspring

Horde of Notions

Altar of Dementia

Shang-Chi, Master of Kung Fu

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Altar of Dementia 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 mill loop hinges on a clever color-matching dance between Jegantha, the Wellspring and Horde of Notions, where Jegantha's tap ability conveniently yields the exact five-color mana cost required to cast Horde of Notions's resurrection ability. Altar of Dementia acts as the graveyard engine, allowing you to sacrifice Jegantha to mill cards and send it straight to the graveyard so it can be brought back directly to the battlefield. Meanwhile, Shang-Chi, Master of Kung Fu smoothly accelerates this entire cycle by granting Jegantha the ability to tap immediately and bypass summoning sickness, while its second ability provides specialized mana to help fuel other creature activations along the way.