Emiel the Blessed + Preston, the Vanisher + Delney, Streetwise Lookout + Corsair Captain

Emiel the Blessed

Preston, the Vanisher

Delney, Streetwise Lookout

Corsair Captain

How it works

1. Activate Emiel the Blessed by paying 3, blinking Corsair Captain.
2. When Corsair Captain enters the battlefield, it triggers twice, and Preston trigger twice if it has power 2 or less, or once otherwise.
3. Resolve both Corsair Captain triggers, creating two Treasure artifact tokens.
4. Resolve the first Preston trigger, creating a token copy of Corsair Captain that is a 0/1 Illusion.
5. When the Corsair Captain token enters the battlefield, it triggers twice, creating two Treasure tokens.
6. Repeat from step 4 for the remaining Preston trigger, if applicable.
7. Activate three Treasures by tapping and sacrificing them, adding 3.
8. Repeat.

By leveraging Emiel the Blessed to repeatedly blink Corsair Captain, this loop exploits the entry of a creature that naturally meets Delney, Streetwise Lookout's condition for doubling triggered abilities. Because Corsair Captain enters with a power of 2 or less, Delney causes both its own entry trigger and Preston, the Vanisher's identity-copying trigger to fire twice. Preston uses these doubled triggers to spawn a flurry of 0/1 illusion token copies of Corsair Captain, which in turn generate an abundance of Treasure tokens when they enter the battlefield. Sacrificing just three of those Treasures provides the exact {3} mana needed to fuel Emiel the Blessed's ability all over again, sustaining an infinite cycle of creature entries, leaves, and copies.