Chthonian Nightmare + Priest of Gix + Pitiless Plunderer
Produces: Infinite LTB, Infinite ETB, Infinite colored mana, Infinite sacrifice triggers, Infinite death triggers, Infinite storm count, Infinite Treasure tokens, Infinite energy counters



- Color identity
- B
Prerequisites
You have at least {E}{E}{E}. You control a nontoken creature with mana value 3 or less.
Steps
- Activate Chthonian Nightmare by paying {E}{E}{E}, sacrificing a creature with mana value 3 or less and returning Chthonian Nightmare from the battlefield to your hand.
- When the creature dies, Pitiless Plunderer triggers, creating a Treasure token.
- Resolve the Chthonian Nightmare ability, returning Priest of Gix from your graveyard to the battlefield.
- When Priest of Gix enters the battlefield, it triggers, adding {B}{B}{B}.
- Activate the Treasure by tapping and sacrificing it, adding {1}.
- Cast Chthonian Nightmare by paying {1}{B}.
- When Chthonian Nightmare enters the battlefield, it triggers, causing you to get {E}{E}{E}.
- Activate Chthonian Nightmare by paying at most {E}{E}{E}, sacrificing Priest of Gix and returning Chthonian Nightmare from the battlefield to your hand.
- When Priest of Gix dies, Pitiless Plunderer triggers, creating a Treasure token.
- Resolve the Chthonian Nightmare ability, returning another creature with mana value 3 or less from your graveyard to the battlefield.
- Cast Chthonian Nightmare by paying {1}{B}.
- When Chthonian Nightmare enters the battlefield, it triggers, causing you to get {E}{E}{E}.
- Repeat.