Ancient Adamantoise, Enduring Renewal, Phyrexian Altar, and Archelos, Lagoon Mystic

Prerequisites

• Ancient Adamantoise on the battlefield
• Enduring Renewal on the battlefield
• Phyrexian Altar on the battlefield
• Archelos, Lagoon Mystic on the battlefield

Steps

1. Activate Phyrexian 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 seven 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 storm count
• Infinite Treasure tokens