At the beginning of your combat phase, Vihaan triggers, causing all Treasures you control to become 3/3 Construct Assassins in addition to their other types.
Move to your postcombat main phase.
Activate five Treasures by tapping and sacrificing them, adding {3}{R}{R}.
When the Treasures die, Pitiless Plunderer triggers five times, creating five Treasure tokens.
Resolve the Aggravated Assault ability, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.

Infinite combat phases

Infinite death triggers

Infinite creature LTB

Infinite creature sacrifice triggers

Vihaan, Goldwaker

Pitiless Plunderer

Aggravated Assault

At the beginning of your combat phase, Vihaan triggers, causing all Treasures you control to become 3/3 Construct Assassins in addition to their other types.
Declare Hellkite Charger as an attacker, triggering its ability.
Holding priority, activate seven Treasures by tapping and sacrificing them, adding {5}{R}{R}.
When the Treasures die, Pitiless Plunderer triggers seven times, creating seven Treasure tokens.
Resolve the Hellkite Charger ability, causing you to pay {5}{R}{R} to untap all attacking creatures you control and to get an additional combat phase after this one.
Repeat.

Hellkite Charger

At the beginning of your combat phase, Vihaan triggers, causing Treasures you control to become 3/3 Construct Assassin creatures in addition to their other types.
Deal combat damage to an opponent using the creature with Breath of Fury attached.
Breath of Fury triggers, causing you to sacrifice the creature with Breath of Fury attached, then attach Breath of Fury to another creature, untap all creatures you control and to get an additional combat phase after this one.
When the creature dies, Pitiless Plunderer triggers, creating a Treasure token.
Repeat each combat phase.

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Infinite creature ETB

Infinite untap of creatures you control

Infinite mana creatures you control can produce

Infinite combat damage

Breath of Fury

At the beginning of your combat phase, Vihaan triggers, causing Treasures you control to become 3/3 Construct Assassin creatures in addition to their other types.
Deal combat damage to an opponent using the creature with Breath of Fury attached, triggering Breath of Fury and Professional Face-Breaker's first ability.
Resolve the Professional Face-Breaker trigger, creating a Treasure token.
Resolve the Breath of Fury trigger, causing you to sacrifice the creature with Breath of Fury attached, then attach Breath of Fury to another creature, untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.

Professional Face-Breaker

At the beginning of your combat phase, Vihaan triggers, causing all Treasures you control to become 3/3 Construct Assassins in addition to their other types.
Activate five Treasures by tapping and sacrificing them, adding {W}{U}{B}{R}{G}.
When the Treasures die, Pitiless Plunderer triggers five times, creating five Treasure tokens.
Activate Najeela by paying {W}{U}{B}{R}{G}, untapping all attacking creatures, giving them trample, lifelink and haste, and gaining an additional combat phase after this one.
Repeat.

Infinite creature tokens with haste

Najeela, the Blade-Blossom

At the beginning of your combat phase, Vihaan triggers, causing Treasures you control to become 3/3 Construct Assassin creatures in addition to their other types.
Declare the creature with Breath of Fury attached and a creature with menace as attackers, triggering J. Jonah Jameson's second ability, creating a Treasure token.
Deal combat damage to an opponent using the creature with Breath of Fury attached.
Breath of Fury triggers, causing you to sacrifice the creature with Breath of Fury attached, then attach Breath of Fury to another creature, untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.

Combos with "Vihaan, Goldwaker"