Brotherhood Outcast, Spawning Pit, and Minion's Return

Prerequisites

• Brotherhood Outcast on the battlefield
• Spawning Pit on the battlefield
• Minion's Return on the battlefield

Steps

1. Activate Spawning Pit 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. Resolve the Spawning Pit ability
5. Repeat

Results

• Infinite charge counters on a permanent
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers