Chthonian Nightmare, Priest of Gix, Skittering Precursor, and Spawning Pit

Prerequisites

• Chthonian Nightmare on the battlefield
• Priest of Gix on the battlefield
• Skittering Precursor on the battlefield
• Spawning Pit on the battlefield

Steps

1. Activate Spawning Pit by sacrificing Priest of Gix
2. When Priest of Gix dies, Skittering Precursor triggers, creating a 0/1 Eldrazi Spawn creature token
3. Resolve the Spawning Pit ability Activate Chthonian Nightmare by paying , sacrificing the Eldrazi Spawn and returning Chthonian Nightmare from the battlefield to your hand, returning Priest of Gix from your graveyard to the battlefield
4. When Priest of Gix enters the battlefield, it triggers, adding
5. Cast Chthonian Nightmare by paying
6. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get
7. Repeat

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite artifact tokens
• Infinite black mana
• Infinite charge counters on a permanent
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers
• Infinite storm count