Malcolm, Keen-Eyed Navigator, Lightning-Rig Crew, Dargo, the Shipwrecker, and Spawning Pit

Prerequisites

• Malcolm, Keen-Eyed Navigator on the battlefield
• Lightning-Rig Crew on the battlefield
• Dargo, the Shipwrecker in the command zone
• Spawning Pit on the battlefield

Steps

1. Activate Lightning-Rig Crew by tapping it, dealing 1 damage to each opponent
2. Malcolm triggers, creating a Treasure for each opponent dealt damage
3. Activate a Treasure by tapping and sacrificing it, adding
4. Cast Dargo by paying due to its cost reduction, including its commander tax
5. Lightning-Rig Crew triggers, untapping it
6. Resolve Dargo
7. Then, activate Spawning Pit by sacrificing Dargo
8. Choose to return Dargo to the command zone from your graveyard
9. Resolve the Spawning Pit ability, putting a charge counter on Spawning Pit
10. Repeat

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite charge counters on a permanent
• Infinite commander casts
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Near-infinite Treasure tokens
• Near-infinite colored mana