Optimus Prime, Hero // Optimus Prime, Autobot Leader, Luminous Broodmoth, and Arcbound Ravager

Prerequisites

• Optimus Prime, Hero // Optimus Prime, Autobot Leader on the battlefield
• Luminous Broodmoth on the battlefield
• Arcbound Ravager on the battlefield

Steps

1. Activate Arcbound Ravager by sacrificing Optimus Prime, Hero
2. When Optimus Prime, Hero dies, its second ability triggers, returning it from your graveyard to the battlefield as Optimus Prime, Autobot Leader
3. Activate Arcbound Ravager by sacrificing Optimus Prime, Autobot Leader
4. When Optimus Prime, Autobot Leader dies, Luminous Broodmoth triggers, returning Optimus Prime from your graveyard to the battlefield as Optimus Prime, Hero with a flying counter on it
5. Resolve both Arcbound Ravager abilities from steps 1 and 3, putting two +1/+1 counters on it
6. Repeat

Results

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