Hashaton, Scarab's Fist + Mind Over Matter + Skullwinder + The Eternity Elevator

Hashaton, Scarab's Fist

Mind Over Matter

Skullwinder

The Eternity Elevator

How it works

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

This engine starts when The Eternity Elevator generates a massive reservoir of colorless mana, which you then convert into blue mana to fuel Hashaton, Scarab's Fist. By using Mind Over Matter to discard Skullwinder, you satisfy Hashaton's trigger condition to create a 4/4 zombie token copy of the snake, which simultaneously untaps The Eternity Elevator and loops Skullwinder right back to your hand from the graveyard via its entry trigger. Because Mind Over Matter's discard cost directly feeds Hashaton while untapping your mana source, this loop generates infinite creature enter-the-battlefield effects, infinite tapped tokens, and unlimited colored and colorless mana.