Atsushi, the Blazing Sky, Enduring Renewal, and Ashnod's Altar

Prerequisites

• Atsushi, the Blazing Sky on the battlefield
• Enduring Renewal on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Atsushi, adding
2. Atsushi dies, triggering itself and Enduring Renewal
3. Resolve the Atsushi trigger, creating three Treasure tokens
4. Resolve Enduring Renewal's trigger, returning Atsushi from your graveyard to your hand
5. Activate two Treasure tokens by tapping and sacrificing them, adding
6. Cast Atsushi from your hand by paying
7. Repeat

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite artifact tokens
• Infinite colored mana
• Infinite colorless mana
• Infinite death triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite storm count
• Infinite Treasure tokens
• Cast all spells in your library