Cast Essence Flux by paying , targeting Returned Pastcaller.
Storm-Kiln Artist triggers, creating a Treasure artifact token.
Resolve Essence Flux, blinking Returned Pastcaller.
When Returned Pastcaller enters the battlefield, it triggers, returning Essence Flux to your hand from your graveyard.
Activate the Treasure by tapping and sacrificing it, adding .
Repeat.
This clever loop lets you recast **Essence Flux** indefinitely by leveraging **Returned Pastcaller**, which retrieves the spell from your graveyard every time it enters the battlefield. Meanwhile, **Storm-Kiln Artist** acts as the engine's core economic engine, transforming every cast into a steady stream of Treasure tokens that provide the exact blue mana needed to keep the cycle going. Because **Returned Pastcaller** is a Spirit, each blink from **Essence Flux** even buffs it with a +1/+1 counter while feeding your magecraft triggers and generating boundless artifacts.