Pitiless Plunderer, Wriggling Grub, Chthonian Nightmare, and Phantom Train

Prerequisites

• Pitiless Plunderer on the battlefield
• Wriggling Grub in the graveyard
• Chthonian Nightmare in hand
• Phantom Train on the battlefield
• 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 , sacrificing another creature and returning Chthonian Nightmare from the battlefield to your hand
4. When the creature dies, Pitiless Plunderer triggers, creating a Treasure token
5. Resolve the Chthonian Nightmare ability, returning Wriggling Grub from your graveyard to the battlefield
6. Activate Phantom Train by sacrificing Wriggling Grub
7. When Wriggling Grub dies, it and Pitiless Plunderer trigger
8. Resolve the Wriggling Grub trigger, creating two 1/1 Worm creature tokens
9. Resolve the Pitiless Plunderer trigger, creating a Treasure token
10. Resolve the Phantom Train ability
11. Activate the Treasures by tapping and sacrificing them, adding
12. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite creature tokens
• Infinite Treasure tokens
• Infinite energy counters
• Infinite +1/+1 counters on a creature