Hashaton, Scarab's Fist + Mind Over Matter + Eternal Witness + Pyramid of the Pantheon

Hashaton, Scarab's Fist

Mind Over Matter

Eternal Witness

Pyramid of the Pantheon

How it works

1. Activate Pyramid of the Pantheon by tapping it, adding .
2. Activate Mind Over Matter by discarding Eternal Witness.
3. Hashaton triggers, causing you to pay 2 to create a tapped token copy of Eternal Witness that is a 4/4 Zombie.
4. When the Eternal Witness token enters the battlefield, it triggers, returning Eternal Witness from your graveyard to your hand.
5. Resolve the Mind Over Matter ability, untapping Pyramid of the Pantheon.
6. Repeat.

This ingenious loop relies on Mind Over Matter to fuel its own engine, letting you discard Eternal Witness to untap Pyramid of the Pantheon for the necessary blue mana. Each time you pitch the witness, Hashaton, Scarab's Fist steps in to turn that discard into a 4/4 Zombie token copy. When that token enters the battlefield, its trigger lets you pull the original Eternal Witness right back out of your graveyard and into your hand. The result is a self-sustaining cycle that generates infinite creature enters-the-battlefield effects, infinite self-discard triggers, and an endless army of tapped zombie tokens.