Activate Emiel the Blessed by paying {1}, blinking Kalain.
When Kalain enters the battlefield, it triggers, creating a Treasure artifact token.
Activate the Treasure by tapping and sacrificing it, adding {1}.
Repeat.

Infinite LTB

Infinite ETB

Emiel the Blessed

Kalain, Reclusive Painter

Zirda, the Dawnwaker

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

Combos with "Kalain, Reclusive Painter"