Chthonian Nightmare + Priest of Gix + Cathodion

Prerequisites

• You have at least three energy counters.

Steps

1. 1Activate Chthonian Nightmare by paying , sacrificing Cathodion and returning Chthonian Nightmare from the battlefield to your hand.
2. 2When Cathodion dies, it triggers, adding .
3. 3Resolve the Chthonian Nightmare ability, returning Priest of Gix from your graveyard to the battlefield.
4. 4When Priest of Gix enters the battlefield, it triggers, adding .
5. 5Cast Chthonian Nightmare by paying .
6. 6When Chthonian Nightmare enters the battlefield, it triggers, causing you to get .
7. 7Activate Chthonian Nightmare by paying , sacrificing Priest of Gix and returning Chthonian Nightmare from the battlefield to your hand, returning Cathodion from your graveyard to the battlefield.
8. 8Cast Chthonian Nightmare by paying .
9. 9When Chthonian Nightmare enters the battlefield, it triggers, causing you to get .
10. 10Repeat.

Effects

• Infinite black mana
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count