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

Automated Assembly Line

Gonti's Aether Heart

Demon of Dark Schemes

Sarcatog

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 Sarcatog's second 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 Sarcatog ability, giving it +1/+1 until end of turn.
6. Repeat.

This ingenious energy loop turns Automated Assembly Line’s token-making ability into a perpetual motion machine by recycling your resources through sacrifice. Every time you spend your stored reserves to build a 3/3 Robot, Gonti's Aether Heart immediately steps in to refund a portion of that cost with fresh energy upon entry. Feeding that newly minted construct to Sarcatog not only pumps its power to astronomical heights, but also triggers Demon of Dark Schemes to harvest one final energy counter from the creature's demise. Together, this tight assembly line generates an endless cycle of enters-the-battlefield and dies triggers, letting you squeeze infinite value out of your artifacts without ever needing to enter the combat step.