Chthonian Nightmare + Salvager of Secrets + Time Warp

Chthonian Nightmare

Salvager of Secrets

Time Warp

How it works

1. Cast Time Warp by paying 3, causing you to take an extra turn after this one.
2. Move to your next turn.
3. Cast Chthonian Nightmare by paying 1.
4. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
5. Activate Chthonian Nightmare by paying EEEEE, sacrificing a creature with mana value 1 or less, and returning Chthonian Nightmare from the battlefield to your hand, returning Salvager of Secrets from your graveyard to the battlefield.
6. When Salvager of Secrets enters the battlefield, it triggers, returning Time Warp from your graveyard to your hand.
7. Cast Chthonian Nightmare by paying 1.
8. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
9. Activate Chthonian Nightmare by paying at most E, sacrificing Salvager of Secrets, and returning Chthonian Nightmare from the battlefield to your hand, returning a creature with mana value 1 or less from your graveyard to the battlefield.
10. Repeat.

This ingenious loop sets up an infinite chain of extra turns by constantly recycling your key spells right out of the graveyard. You kick things off by casting Time Warp to secure your next turn, letting it hit the graveyard so it can later be fished back to your hand by Salvager of Secrets when it enters the battlefield. To pull this off repeatedly, Chthonian Nightmare acts as the ultimate engine, allowing you to sacrifice creatures and bounce itself back to your hand while leveraging its energy-generating entry trigger to continuously swap your graveyard resources onto the battlefield.