Dross Scorpion, Detective's Satchel, and Arcbound Ravager

Prerequisites

• Dross Scorpion on the battlefield
• Detective's Satchel on the battlefield
• Arcbound Ravager on the battlefield

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on Arcbound Ravager