Chthonian Nightmare + Patron of the Arts + Cloud Key

Chthonian Nightmare

Patron of the Arts

Cloud Key

How it works

1. Activate Chthonian Nightmare by paying at most EEE, sacrificing Patron of the Arts and returning Chthonian Nightmare from the battlefield to your hand.
2. When Patron of the Arts dies, it triggers, creating a Treasure token.
3. Resolve the Chthonian Nightmare ability, returning another creature card from your graveyard to the battlefield.
4. Activate the Treasure by tapping and sacrificing it, adding .
5. Cast Chthonian Nightmare by paying .
6. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
7. Activate Chthonian Nightmare by paying EEE, sacrificing another creature and returning Chthonian Nightmare from the battlefield to your hand, returning Patron of the Arts from your graveyard to the battlefield.
8. When Patron of the Arts enters the battlefield, it triggers, creating a Treasure token.
9. Activate the Treasure by tapping and sacrificing it, adding .
10. Cast Chthonian Nightmare by paying .
11. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
12. Repeat.

This cunning loop lets you endlessly recycle Chthonian Nightmare by using its own energy generation to fund its reanimation costs. Whenever Patron of the Arts dies or enters the battlefield, it fuels the mana supply by generating a Treasure token to cover the enchantment's re-casting cost. Meanwhile, Cloud Key makes that recycling process even more efficient by shaving generic mana off the spell's cost, turning your graveyard into a perpetual motion machine that generates infinite energy, death triggers, and storm count.