Dross Scorpion, Detective's Satchel, and Sarcatog

Prerequisites

• Dross Scorpion on the battlefield
• Detective's Satchel on the battlefield
• Sarcatog on the battlefield

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinitely large Sarcatog until end of turn