Junji, the Midnight Sky, Conspiracy, Dross Harvester, and Ashnod's Altar

Prerequisites

• Junji, the Midnight Sky on the battlefield
• Conspiracy on the battlefield
• Dross Harvester on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Junji, adding
2. Junji dies, triggering itself and Dross Harvester
3. Resolve the Dross Harvester trigger, causing you to gain two life
4. Resolve the Junji trigger, returning itself from your graveyard to the battlefield and causing you to lose 2 life
5. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite lifegain triggers
• Infinite LTB
• Infinite sacrifice triggers