Activate Kalain by paying {1}{U}, blinking it.
When Kalain enters, it and Deadeye Navigator's soulbond ability trigger twice.
Resolve both Deadeye Navigator triggers, repairing it and Kalain.
Resolve both Kalain triggers, creating two Treasure tokens.
Activate both Treasures by tapping and sacrificing them, adding {1}{U}.
Repeat.

Infinite LTB

Infinite ETB

Deadeye Navigator

Panharmonicon

Kalain, Reclusive Painter

Activate Kalain by paying {1}{U}, blinking it.
When Kalain enters, it and Deadeye Navigator's soulbond ability trigger
Resolve the Deadeye Navigator trigger, repairing it and Kalain.
Resolve the Kalain trigger, creating two Treasure tokens.
Activate both Treasures by tapping and sacrificing them, adding {1}{U}.
Repeat.

Mondrak, Glory Dominus

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.

Emiel the Blessed

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"