Thunderbolts Conspiracy, Solemnity, and Ashnod's Altar

Prerequisites

• Thunderbolts Conspiracy on the battlefield
• Solemnity on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing a Villain without a finality counter on it
2. When the Villain dies, Thunderbolts Conspiracy triggers, returning it from your graveyard to the battlefield without a finality counter on it due to Solemnity
3. Repeat

Results

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