Requires

Chthonian Nightmare must be on the battlefield. Priest of Gix must be on the battlefield. Fumulus, the Infestation must be on the battlefield. Ashnod's Altar must be on the battlefield. You have at least .

Steps

1. Activate Ashnod's Altar by sacrificing Priest of Gix, adding .
2. When Priest of Gix dies, Fumulus's first ability triggers, creating a 1/1 Insect creature token.
3. Activate Chthonian Nightmare by paying , sacrificing the Insect and returning Chthonian Nightmare from the battlefield to your hand, returning Priest of Gix from your graveyard to the battlefield.
4. When Priest of Gix enters the battlefield, it triggers, adding .
5. Cast Chthonian Nightmare by paying .
6. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get .
7. Repeat.

Results