Shepherd of the Cosmos, Spawning Pit, and Fungal Fortitude

Prerequisites

• Shepherd of the Cosmos on the battlefield
• Spawning Pit on the battlefield
• Fungal Fortitude on the battlefield

Steps

1. Activate Spawning Pit by sacrificing Shepherd of the Cosmos
2. When Shepherd of the Cosmos dies, Fungal Fortitude triggers, returning Shepherd of the Cosmos from your graveyard to the battlefield
3. When Shepherd of the Cosmos enters the battlefield, it triggers, returning Fungal Fortitude from your graveyard to the battlefield attached to Shepherd of the Cosmos
4. Resolve the Spawning Pit ability Repeat

Results

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