Elesh Norn, Mother of Machines + Gonti's Aether Heart + Prototype Portal + Lithoform Engine

Elesh Norn, Mother of Machines

Gonti's Aether Heart

Prototype Portal

Lithoform Engine

How it works

1. Activate Prototype Portal by paying 6 and tapping it.
2. Holding priority, activate Lithoform Engine's first ability by paying 2 and tapping it, copying Prototype Portal's ability.
3. Resolve the copy of Prototype Portal's ability, creating a token copy of Gonti's Aether Heart.
4. When the Gonti's Aether Heart token enters the battlefield, it triggers twice, causing you to get EEEE.
5. Resolve the original Prototype Portal ability, creating a token copy of Gonti's Aether Heart.
6. Put either Gonti's Aether Heart token into your graveyard due to the legend rule.
7. When the Gonti's Aether Heart token enters the battlefield, it triggers twice, causing you to get EEEE.
8. Activate the remaining Gonti's Aether Heart token by paying eight E and exiling it, causing you to take an extra turn after this one.
9. Repeat each turn.

This brilliant setup revolves around Prototype Portal holding an imprinted Gonti's Aether Heart, turning your mana into a steady stream of artifact tokens. By bringing in Elesh Norn, Mother of Machines, every entering artifact copy triggers its energy-generating ability twice as many times, completely bypassing any disruption your opponents might try to set up. You then double down on the initial activation using Lithoform Engine, churning out multiple copies of Gonti's Aether Heart in a single turn to rapidly stockpile the necessary energy. Once you have accumulated eight energy counters, you cash them in by exiling one of the tokens to take an infinite number of extra turns.