Optimus Prime, Hero // Optimus Prime, Autobot Leader, Antler Skulkin, and Krark-Clan Ironworks

Prerequisites

• Optimus Prime, Hero // Optimus Prime, Autobot Leader on the battlefield
• Antler Skulkin on the battlefield
• Krark-Clan Ironworks on the battlefield
• It is your turn
• available

Steps

1. Activate Krark-Clan Ironworks by sacrificing Optimus Prime, Hero, adding
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 Antler Skulkin by paying , giving Optimus Prime, Autobot Leader persist until end of turn
4. Activate Krark-Clan Ironworks by sacrificing Optimus Prime, Autobot Leader, adding
5. When Optimus Prime, Autobot Leader dies, its persist ability triggers, returning it from your graveyard to the battlefield as Optimus Prime, Hero with a -1/-1 counter on it
6. Repeat

Results

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