Dross Scorpion + Detective's Satchel + Bartolomé del Presidio

Dross Scorpion

Detective's Satchel

Bartolomé del Presidio

How it works

1. Activate Detective's Satchel by tapping it, creating a 1/1 Thopter artifact creature token.
2. Activate Bartolomé del Presidio by sacrificing the Thopter.
3. When the Thopter dies, Dross Scorpion triggers, untapping Detective's Satchel.
4. Resolve the Bartolomé del Presidio ability.
5. Repeat.

This clever loop uses Dross Scorpion as the mechanical engine, leveraging its triggered ability to continuously untap Detective's Satchel whenever an artifact creature hits the graveyard. By using Bartolomé del Presidio as a convenient sacrifice outlet, you can feed the Thopter token created by Detective's Satchel right back into the graveyard to instantly re-untap the Satchel and grow Bartolomé del Presidio with endless +1/+1 counters. Because both the tokens and Detective's Satchel are artifacts, every iteration of this sacrifice cycle endlessly triggers the Scorpion to keep the machine running.