Chthonian Nightmare, Pawn of Ulamog, Greedy Freebooter, and Shambling Ghast

Prerequisites

• Chthonian Nightmare in hand
• Pawn of Ulamog on the battlefield
• Greedy Freebooter on the battlefield or in the graveyard
• Shambling Ghast on the battlefield or in the graveyard
• One of Greedy Freebooter or Shambling Ghast must be on the battlefield with the other in your graveyard
• available

Steps

1. Cast Chthonian Nightmare by paying
2. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get
3. Activate Chthonian Nightmare by paying an amount of , sacrificing Greedy Freebooter or Shambling Ghast and returning Chthonian Nightmare from the battlefield to your hand
4. When Greedy Freebooter or Shambling Ghast dies, it and Pawn of Ulamog trigger
5. Resolve the Greedy Freebooter or Shambling Ghast trigger, creating a Treasure token
6. Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token
7. Resolve the Chthonian Nightmare ability, returning either Greedy Freebooter or Shambling Ghast from your graveyard to the battlefield
8. Activate the Eldrazi Spawn by sacrificing it, adding
9. Activate the Treasure by tapping and sacrificing it, adding
10. Repeat

Results

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