Activate Prosperous Pirates by paying {1}{U}, blinking itself.
Prosperous Pirates enters the battlefield, triggering itself and Deadeye Navigator's soulbond ability.
Resolve the Prosperous Pirates trigger, creating two Treasure tokens.
Resolve the Deadeye Navigator trigger, repairing itself and Prosperous Pirates.
Activate the two Treasure tokens by tapping and sacrificing them, adding {1}{U}.
Repeat.

Infinite ETB

Infinite LTB

Prosperous Pirates

Deadeye Navigator

Activate Saheeli by paying {U}{R} and tapping it, creating a token copy of Prosperous Pirates with haste.
When the Prosperous Pirates token enters the battlefield, it and Coercive Recruiter trigger.
Resolve the Prosperous Pirates trigger, creating two Treasure tokens.
Resolve the Coercive Recruiter trigger, untapping Saheeli.
Activate two Treasures by tapping and sacrificing them, adding {U}{R}.
Repeat.

Infinite sacrifice triggers

Infinite death triggers

Infinite creature tokens with haste

Saheeli, the Sun's Brilliance

Coercive Recruiter

Activate Emiel by paying {3}, blinking Prosperous Pirates.
Prosperous Pirates enters the battlefield, triggering its ability twice, creating four Treasure tokens.
Activate three Treasure tokens by tapping and sacrificing them, adding {3}.
Repeat.

Infinite blinking

Infinite colored mana

Infinite Treasure tokens

Emiel the Blessed

Panharmonicon

Activate Emiel the Blessed by paying {3}, blinking Prosperous Pirates.
When Prosperous Pirates enters the battlefield, it and Preston trigger.
Resolve the Prosperous Pirates trigger, creating two Treasure tokens.
Resolve the Preston trigger, creating a token copy of Prosperous Pirates that is a 0/1 Illusion.
When the Prosperous Pirates token enters the battlefield, it triggers, creating two Treasure tokens.
Activate three Treasures by tapping and sacrificing them, adding {3}.
Repeat.

Infinite creature tokens

Exile any number of nonland permanents

Preston, the Vanisher

Elesh Norn, Mother of Machines

Yarok, the Desecrated

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

Training Grounds

Activate Emiel by paying {3}, blinking Prosperous Pirates.
Prosperous Pirates enters the battlefield, creating four Treasure tokens.
Activate three Treasure tokens by tapping and sacrificing them, adding {3}.
Repeat.

Anointed Procession

Doubling Season

Primal Vigor

Parallel Lives

Activate Emiel by paying {3}, blinking Prosperous Pirates.
Prosperous Pirates enters the battlefield, creating two Treasure tokens.
Activate both Treasure tokens by tapping and sacrificing them, adding four mana of any color.
Repeat.

Combos with "Prosperous Pirates"