Chthonian Nightmare + Priest of Gix + Dark Ritual + Eternal Witness

Prerequisites

• You have at least three energy counters.

Steps

1. 1Activate Chthonian Nightmare by paying , sacrificing Eternal Witness and returning Chthonian Nightmare from the battlefield to your hand, returning Priest of Gix from your graveyard to the battlefield.
2. 2When Priest of Gix enters the battlefield, it triggers, adding .
3. 3Cast Dark Ritual by paying , adding .
4. 4Cast Chthonian Nightmare by paying .
5. 5When Chthonian Nightmare enters the battlefield, it triggers, causing you to get .
6. 6Activate Chthonian Nightmare by paying , sacrificing Priest of Gix and returning Chthonian Nightmare from the battlefield to your hand, returning Eternal Witness from your graveyard to the battlefield.
7. 7When Eternal Witness enters, it triggers, returning Dark Ritual from your graveyard to your hand.
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 death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite storm count