Chthonian Nightmare + Greedy Freebooter + Shambling Ghast + The Immortal Sun

Chthonian Nightmare

Greedy Freebooter

Shambling Ghast

The Immortal Sun

How it works

1. Cast Chthonian Nightmare by paying .
2. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
3. Activate Chthonian Nightmare by paying E, sacrificing Greedy Freebooter and returning Chthonian Nightmare from the battlefield to your hand.
4. When Greedy Freebooter dies, it triggers, causing you to scry 1 and create a Treasure token.
5. Resolve the Chthonian Nightmare ability, returning Shambling Ghast from your graveyard to the battlefield.
6. Activate the Treasure by tapping and sacrificing it, adding .
7. Cast Chthonian Nightmare by paying .
8. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
9. Activate Chthonian Nightmare by paying E, sacrificing Shambling Ghast and returning Chthonian Nightmare from the battlefield to your hand.
10. When Shambling Ghast dies, it triggers, creating a Treasure token.
11. Resolve the Chthonian Nightmare ability, returning Greedy Freebooter from your graveyard to the battlefield.
12. Activate the Treasure by tapping and sacrificing it, adding .
13. Repeat.

This clever recursive loop relies on Chthonian Nightmare constantly bouncing back to your hand while perpetually funding its own energy costs through an exchange of sacrifices. By alternately looping Greedy Freebooter and Shambling Ghast into the graveyard and back, each sacrifice triggers their respective death abilities to generate the Treasure tokens needed to recast the enchantment over and over. Meanwhile, The Immortal Sun sits quietly on the battlefield, making this entire deadly cycle even easier to execute by reducing the casting cost of Chthonian Nightmare by {1}.