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

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Infinite creature LTB

Infinite creature ETB

Deadeye Navigator

Plundering Barbarian

Panharmonicon

Activate Ashnod's Altar by sacrificing Plundering Barbarian, adding {C}{C}.
Plundering Barbarian dies, triggering Nim Deathmantle, causing you to pay {4} to return Plundering Barbarian from your graveyard to the battlefield, and attach Nim Deathmantle to it.
Plundering Barbarian enters the battlefield, creating two Treasure tokens.
Activate two Treasure tokens by tapping and sacrificing those, adding two mana of any color.
Repeat.

Infinite creature sacrifice triggers

Infinite death triggers

Nim Deathmantle

Ashnod's Altar

Xorn

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

Activate Emiel the Blessed by paying {1}, blinking Plundering Barbarian.
When Plundering Barbarian 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 Plundering Barbarian.
When Plundering Barbarian enters the battlefield, it triggers twice, and Preston trigger twice if it has power 2 or less, or once otherwise.
Resolve both Plundering Barbarian triggers, creating two Treasure artifact tokens.
Resolve the first Preston trigger, creating a token copy of Plundering Barbarian that is a 0/1 Illusion.
When the Plundering Barbarian 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 "Plundering Barbarian"