Automated Assembly Line + Gonti's Aether Heart + Demon of Dark Schemes + Grinding Station

Automated Assembly Line

Gonti's Aether Heart

Demon of Dark Schemes

Grinding Station

How it works

1. Activate Automated Assembly Line by paying EEE, creating a 3/3 Robot artifact creature token.
2. When the Robot enters the battlefield, Gonti's Aether Heart and Grinding Station trigger.
3. Resolve the Gonti's Aether Heart trigger, causing you to get EE.
4. Resolve the Grinding Station trigger, untapping it.
5. Activate Grinding Station by tapping it and sacrificing the Robot.
6. When the Robot dies, Demon of Dark Schemes' second ability triggers, causing you to get E.
7. Resolve the Grinding Station ability, causing target player to mill three cards.
8. Repeat.

This loop harnesses a clever energy economy to grind through an opponent's library, centered around Automated Assembly Line's ability to trade energy for a 3/3 Robot artifact creature token. Every time that token enters the battlefield, Gonti's Aether Heart chips in two energy counters while Grinding Station untaps itself, ready to sacrifice the freshly minted Robot. Sacrificing the token feeds Demon of Dark Schemes' death trigger to replace your spent energy, while Grinding Station simultaneously mills three cards from the target player's library.