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

Automated Assembly Line

Gonti's Aether Heart

Demon of Dark Schemes

Lithatog

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 triggers, causing you to get EE.
3. Activate Lithatog's first ability by sacrificing the Robot.
4. When the Robot dies, Demon of Dark Schemes' second ability triggers, causing you to get E.
5. Resolve the Lithatog ability, giving it +1/+1 until end of turn.
6. Repeat.

This intricate energy engine uses Automated Assembly Line as its primary forge, turning accumulated energy into a steady stream of 3/3 Robot tokens. Every time one of those tokens touches the battlefield, Gonti's Aether Heart chips in with a vital influx of extra energy to help keep the assembly running. Meanwhile, Demon of Dark Schemes passively watches over the workshop, quietly harvesting a fresh energy counter each time Lithatog dutifully sacrifices the newly minted Robot. By feeding the tokens to Lithatog's sacrifice ability, you create an endlessly repeating loop of creature entries, deaths, and energy generation that leaves Lithatog infinitely large for the turn.