Ancient Adamantoise, Enduring Renewal, Ashnod's Altar, and Archelos, Lagoon Mystic

Prerequisites

• Ancient Adamantoise on the battlefield
• Enduring Renewal on the battlefield
• Ashnod's Altar on the battlefield
• Archelos, Lagoon Mystic on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Ancient Adamantoise, adding
2. When Ancient Adamantoise dies, it and Enduring Renewal trigger
3. Resolve the Enduring Renewal trigger, returning Ancient Adamantoise from your graveyard to your hand
4. Resolve the Ancient Adamantoise trigger, creating ten Treasure tokens that enter untapped due to Archelos
5. Activate six Treasures by tapping and sacrificing them, adding
6. Cast Ancient Adamantoise by paying
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite storm count
• Infinite Treasure tokens