Chthonian Nightmare, Priest of Gix, and Shambling Ghast

Prerequisites

• Chthonian Nightmare on the battlefield
• Priest of Gix in the graveyard
• Shambling Ghast on the battlefield
• You have at least three energy counters

Steps

1. Activate Chthonian Nightmare by paying , sacrificing Shambling Ghast and returning Chthonian Nightmare from the battlefield to your hand
2. When Shambling Ghast dies, it triggers, creating a Treasure token
3. Resolve the Chthonian Nightmare ability, returning Priest of Gix from your graveyard to the battlefield
4. When Priest of Gix enters the battlefield, it triggers, adding
5. Activate the Treasure by tapping and sacrificing it, adding
6. Cast Chthonian Nightmare by paying
7. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get
8. Activate Chthonian Nightmare by paying , sacrificing Priest of Gix and returning Chthonian Nightmare from the battlefield to your hand, returning Shambling Ghast from your graveyard to the battlefield
9. Cast Chthonian Nightmare by paying
10. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get
11. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite energy counters