Prototype Portal, Dross Scorpion, Thermopod, and Myr Moonvessel

Prerequisites

• Prototype Portal on the battlefield
• Dross Scorpion on the battlefield
• Thermopod on the battlefield
• Myr Moonvessel on the battlefield
• undefined available

Steps

1. Activate Prototype Portal by paying and tapping it, creating a token copy of Myr Moonvessel
2. Activate Thermopod by sacrificing Myr Moonvessel, adding
3. When Myr Moonvessel dies, it and Dross Scorpion trigger
4. Resolve the Myr Moonvessel trigger, adding
5. Resolve the Dross Scorpion trigger, untapping Prototype Portal
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite red mana