Brotherhood Outcast, Thermopod, and Minion's Return

Prerequisites

• Brotherhood Outcast on the battlefield
• Thermopod on the battlefield
• Minion's Return on the battlefield

Steps

1. Activate Thermopod by sacrificing Brotherhood Outcast
2. When Brotherhood Outcast dies, Minion's Return triggers, returning Brotherhood Outcast from your graveyard to the battlefield
3. When Brotherhood Outcast enters the battlefield, it triggers, returning Minion's Return from your graveyard to the battlefield attached to Brotherhood Outcast
4. Repeat

Results

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