Chthonian Nightmare, Skittering Precursor, Greedy Freebooter, and Impulsive Pilferer

Prerequisites

• Chthonian Nightmare in hand
• Skittering Precursor on the battlefield
• Greedy Freebooter on the battlefield or in the graveyard
• Impulsive Pilferer on the battlefield or in the graveyard
• One of Greedy Freebooter or Impulsive Pilferer 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 Impulsive Pilferer and returning Chthonian Nightmare from the battlefield to your hand
4. When Greedy Freebooter or Impulsive Pilferer dies, it and Skittering Precursor trigger
5. Resolve the Greedy Freebooter or Impulsive Pilferer trigger, creating a Treasure token
6. Resolve the Skittering Precursor trigger, creating a 0/1 Eldrazi Spawn creature token
7. Resolve the Chthonian Nightmare ability, returning either Greedy Freebooter or Impulsive Pilferer 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