Atsushi, the Blazing Sky, Mortuary, Future Sight, and Ashnod's Altar

Prerequisites

• Atsushi, the Blazing Sky on the battlefield
• Mortuary on the battlefield
• Future Sight 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 Mortuary
3. Resolve the Atsushi trigger, creating three Treasure tokens
4. Resolve the Mortuary trigger, putting Atsushi on top of your library from your graveyard
5. Activate two Treasure tokens by tapping and sacrificing them, adding
6. Cast Atsushi from the top of your library 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