Cast Essence Flux by paying , targeting Warden of the Eye
Storm-Kiln Artist triggers, creating a Treasure artifact token.
Resolve Essence Flux, blinking Warden of the Eye
When Warden of the Eye 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 loop hinges on Warden of the Eye acting as a recursive engine, returning Essence Flux from your graveyard to your hand every single time it enters the battlefield. To fuel this dance, Storm-Kiln Artist plays a critical supporting role by leveraging its magecraft ability, converting every casting of Essence Flux into a fresh Treasure token to pay for the spell's mana cost. Because Warden of the Eye is a Spirit, Essence Flux even grants it a bonus +1/+1 counter upon return, letting you spin this loop into an arbitrarily high storm count and an endless stream of artifact triggers.