Requires

Chthonian Nightmare must be in hand. Timeless Witness must be in the graveyard. Time Warp must be in hand. You control a nontoken creature with mana value 2 or less. You have at least . Mana needed: the first turn, with each extra turn

Steps

1. Cast Time Warp by paying , causing you to take an extra turn after this one.
2. Move to your next turn.
3. Cast Chthonian Nightmare by paying .
4. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get .
5. Activate Chthonian Nightmare by paying , sacrificing a creature with mana value 2 or less, and returning Chthonian Nightmare from the battlefield to your hand, returning Timeless Witness from your graveyard to the battlefield.
6. When Timeless Witness enters the battlefield, it triggers, returning Time Warp from your graveyard to your hand.
7. Cast Chthonian Nightmare by paying .
8. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get .
9. Activate Chthonian Nightmare by paying at most , sacrificing Timeless Witness, and returning Chthonian Nightmare from the battlefield to your hand, returning a creature with mana value 2 or less from your graveyard to the battlefield.
10. Repeat.

Results