Dross Scorpion, Detective's Satchel, and Grinding Station

Prerequisites

• Dross Scorpion on the battlefield
• Detective's Satchel on the battlefield
• Grinding Station on the battlefield

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill