Kheru Goldkeeper, Twilight Diviner, and Chthonian Nightmare

Prerequisites

• Kheru Goldkeeper in the graveyard
• Twilight Diviner on the battlefield
• Chthonian Nightmare on the battlefield
• available

Steps

1. Activate Chthonian Nightmare by paying , sacrificing another nontoken creature with mana value 3 or less and returning Chthonian Nightmare from the battlefield to your hand, returning Kheru Goldkeeper from your graveyard to the battlefield
2. When Kheru Goldkeeper enters, Twilight Diviner's second ability triggers, creating a token copy of Kheru Goldkeeper
3. Cast Chthonian Nightmare by paying
4. When Chthonian Nightmare enters, it triggers, causing you to get
5. Activate Chthonian Nightmare by paying an amount of , sacrificing Twilight Diviner and returning Chthonian Nightmare from the battlefield to your hand, returning the creature sacrificed in step 1 from your graveyard to the battlefield
6. Both Kheru Goldkeepers trigger, creating two Treasure tokens
7. Activate the Treasures by tapping and sacrificing them, adding
8. Repeat steps 3 and 4 once
9. Activate Chthonian Nightmare by paying , sacrificing the nontoken Kheru Goldkeeper and returning Chthonian Nightmare from the battlefield to your hand, returning Twilight Diviner from your graveyard to the battlefield
10. The token Kheru Goldkeeper and Twilight Diviner's first ability trigger
11. Resolve the Kheru Goldkeeper trigger, creating a Treasure token
12. Resolve the Twilight Diviner trigger, causing you to surveil 2
13. Activate the Treasure by tapping and sacrificing it, adding
14. Repeat steps 3 and 4 once
15. Activate Chthonian Nightmare by paying , sacrificing another nontoken creature with mana value 3 or less and returning Chthonian Nightmare from the battlefield to your hand, returning Kheru Goldkeeper from your graveyard to the battlefield
16. The token Kheru Goldkeeper and Twilight Diviner's second ability triggers
17. Resolve the Twilight Diviner trigger, creating a token copy of Kheru Goldkeeper
18. Resolve the Kheru Goldkeeper trigger, creating a Treasure token
19. Activate the Treasure by tapping and sacrificing it, adding
20. Repeat steps 3 and 4 once
21. Activate Chthonian Nightmare by paying an amount of , sacrificing Twilight Diviner and returning Chthonian Nightmare from the battlefield to your hand, returning a creature with mana value 3 or less from your graveyard to the battlefield
22. Each Kheru Goldkeeper triggers, creating three Treasure tokens
23. Activate two Treasures by tapping and sacrificing them, adding
24. Repeat steps 3 and 4 once
25. Activate Chthonian Nightmare by paying , sacrificing another nontoken creature with mana value 3 or less and returning Chthonian Nightmare from the battlefield to your hand, returning Twilight Diviner from your graveyard to the battlefield
26. Each Kheru Goldkeeper and Twilight Diviner's first ability trigger
27. Resolve each Kheru Goldkeeper trigger, creating three Treasure tokens
28. Resolve the Twilight Diviner trigger, causing you to surveil 2
29. Activate two Treasures by tapping and sacrificing them, adding
30. Repeat from step 20

Results

• Infinite ETB
• Infinite LTB
• Infinite Treasure tokens
• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite energy counters
• Infinite sacrifice triggers
• Infinite storm count
• Infinite surveil