Activate Emiel the Blessed by paying 3, blinking Brazen Freebooter.
When Brazen Freebooter enters the battlefield, it triggers once, and Preston triggers twice.
Resolve the Brazen Freebooter trigger, creating a Treasure token.
Resolve the first Preston trigger, creating a token copy of Brazen Freebooter that is a 0/1 Illusion.
When the Brazen Freebooter token enters the battlefield, it triggers, creating a Treasure token.
Repeat from step 4 for the remaining Preston trigger.
Activate three Treasures by tapping and sacrificing them, adding 3.
Repeat.
This delightful loop turns simple blink magic into an endless assembly line by pairing Emiel the Blessed with Brazen Freebooter as the core engine. When Emiel continuously flickers the Freebooter, Delney, Streetwise Lookout steps in with a clever static boost, doubling Preston, the Vanisher's entry triggers so that every cycle spawns both a real creature and a 0/1 Illusion token copy. Because those tokens and the original pirate keep crashing onto the battlefield, they continually mint Treasure tokens whose sacrificed mana feeds right back into Emiel the Blessed's activation cost, leaving you with an unstoppable cascade of enter-the-battlefield effects and an army of ghostly duplicates.