On each of your opponent' draw steps, Teferi's Puzzle Box triggers, shuffling their hands into their libraries and drawing them 0 cards, giving you treasures equal to the number of cards they would have drawn.

Opponents put all cards in hand on the bottom of their library on each of their draw steps

Near-infinite Treasure tokens

Near-infinite colored mana

Lock

Hullbreacher

Teferi's Puzzle Box

Activate Faerie Mastermind by paying {2}{U}, causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate three Treasures by tapping and sacrificing them, adding {2}{U}.
Repeat.
If you have four or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Infinite card draw

Infinite draw triggers

Faerie Mastermind

Heartstone

Activate Faerie Mastermind by paying {1}{U}, causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate two Treasures by tapping and sacrificing them, adding {1}{U}.
Repeat.
If you have three or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Training Grounds

Activate Dakra Mystic by paying {U} and tapping it, causing each player to revel the top card of their library, then causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate two Treasures by tapping and sacrificing them, adding {U}{U}.
Activate Pemmin's Aura's first ability by paying {U}, untapping Dakra Mystic.
Repeat.
If you have three or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Infinite looting

Infinite self-discard triggers

Dakra Mystic

Pemmin's Aura

Activate Dakra Mystic by paying {U} and tapping it, causing each player to revel the top card of their library, then causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate two Treasures by tapping and sacrificing them, adding {U}{U}.
Activate Freed from the Real's second ability by paying {U}, untapping Dakra Mystic.
Repeat.
If you have three or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Freed from the Real

Activate Lore Broker by tapping it, causing you to draw a card and create a Treasure artifact token for each opponent you have, then causing each player to discard a card.
Activate a Treasure by tapping and sacrificing it, adding {U}.
Activate Pemmin's Aura's first ability by paying {U}, untapping Lore Broker.
Repeat.
If you have two or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Lore Broker

Activate Lore Broker by tapping it, causing you to draw a card and create a Treasure artifact token for each opponent you have, then causing each player to discard a card.
Activate a Treasure by tapping and sacrificing it, adding {U}.
Activate Freed from the Real's second ability by paying {U}, untapping Lore Broker.
Repeat.
If you have two or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Activate Temple Bell by tapping it, causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate three Treasures by tapping and sacrificing them, adding {2}{U}.
Activate Filigree Sages by paying {2}{U}, untapping Temple Bell.
Repeat.
If you have four or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Near-infinite card draw for each opponent

Near-infinite draw triggers for each opponent

Temple Bell

Filigree Sages

Activate Otherworld Atlas' second ability by tapping it, causing you to draw a card for each charge counter on it and create that many Treasure artifact tokens for each opponent you have.
Activate Clock of Omens by tapping two Treasures, untapping Otherworld Atlas.
Repeat.

Otherworld Atlas

Clock of Omens

Activate Temple Bell, drawing each player a card.
For each card your opponent would have drawn, create a Treasure token instead.
Activate Clock of Omens by tapping two Treasures token, untapping Temple Bell.
Repeat

Near-infinite tapped Treasure tokens

Activate Folio of Fancies's first ability by paying {4} and tapping it, causing you to draw two cards and create at least six Treasure tokens due to Hullbreacher.
Activate Mind over Matter by discarding a card, untapping Folio of Fancies.
Activate four Treasure tokens by tapping and sacrificing them, adding {4}.
Repeat.

Near-infinite self-discard triggers

Folio of Fancies

Mind Over Matter

Activate Folio of Fancies's first ability by paying {6} and tapping it, causing you to draw three cards and create at least nine Treasure tokens due to Hullbreacher.
Activate Clock of Omens by tapping two Treasure tokens, untapping Folio of Fancies.
Activate six Treasure tokens by tapping and sacrificing them, adding {6}.
Repeat.

Biomancer's Familiar

Activate Faerie Mastermind by paying {3}{U}, causing you to draw a card and create two Treasure artifact tokens for each opponent you have.
Activate four Treasures by tapping and sacrificing them, adding {3}{U}.
Repeat.
If you have three or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Doubling Season

Activate Faerie Mastermind by paying {3}{U}, causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate two Treasures by tapping and sacrificing them, adding {2}{U}{U}.
Repeat.
If you have three or more opponents, this combo nets near-infinite Treasure tokens and colored mana.

Goldspan Dragon

Adrix and Nev, Twincasters

Mondrak, Glory Dominus

Anointed Procession

Primal Vigor

Parallel Lives

Xorn

Activate Folio of Fancies by paying an amount of mana equal to five divided by the number of opponents you have, rounded up, multiplied by two and tapping it, causing you to draw cards equal to half the mana paid this way, and then causing you to create that many Treasure artifact tokens for each opponent you have.
Activate Time Sieve by tapping it and sacrificing five Treasures, causing you to take an extra turn after this one.
Repeat each turn.

Near-infinite turns

Time Sieve

Cast Wheel of Fortune from your graveyard for its escape cost by paying {2}{R} and exiling three other cards from your graveyard, causing each player to discard their hand, then causing you to draw seven cards, then create seven Treasure artifact tokens for each opponent you have.
Activate three Treasures by tapping and sacrificing them, adding {2}{R}.
Repeat.

Underworld Breach

Wheel of Fortune

Cast Burning Inquiry from your graveyard for its escape cost by paying {R} and exiling three other cards from your graveyard, causing you to draw three cards, then create three Treasure artifact tokens for each opponent you have, then causing each player to discard three cards.
Activate a Treasure by tapping and sacrificing it, adding {R}.
Repeat.

Burning Inquiry

Cast Windfall from your graveyard for its escape cost by paying {2}{U} and exiling three other cards from your graveyard, causing each player to discard their hand, then causing you to draw at least three cards, then create that many Treasure artifact tokens for each opponent you have.
Activate three Treasures by tapping and sacrificing them, adding {2}{U}.
Repeat.

Windfall

Cast Reforge the Soul from your graveyard for its escape cost by paying {3}{R}{R} and exiling three other cards from your graveyard, causing each player to discard their hand, then causing you to draw seven cards, then create seven Treasure artifact tokens for each opponent you have.
Activate five Treasures by tapping and sacrificing them, adding {3}{R}{R}.
Repeat.

Reforge the Soul

Activate Faerie Mastermind by paying {1}{U}, causing you to draw a card and create a Treasure artifact token for each opponent you have.
Activate two Treasures by tapping and sacrificing them, adding {1}{U}.
Repeat.
If you have three or more opponents and/or Agatha of the Vile Cauldron has power 3 or greater, this combo nets near-infinite Treasure tokens and colored mana.

Agatha of the Vile Cauldron

Zirda, the Dawnwaker

Near-infinite +1/+1 counters on a creature

Jolene, the Plunder Queen

Cast Whispering Madness from your graveyard for its escape cost by paying {2}{U}{B} and exiling three other cards from your graveyard, causing each player to discard their hand, then causing you to draw at least four cards, then create that many Treasure artifact tokens for each opponent you have.
Activate four Treasures by tapping and sacrificing them, adding {2}{U}{B}.
Repeat.

Whispering Madness

Activate Kenrith by paying {U}, causing an opponent to draw a card.
Hullbreacher replaces the card drawn with you creating a Treasure token.
Activate the Treasure token by tapping and sacrificing it to add {U}{U}.
Repeat.


Infinite colored mana

Infinite lifegain triggers

Infinite lifegain

Infinite card draw for any number of players

Return all creature cards from all graveyards to the battlefield under your control

Infinite draw triggers for any number of opponents

Infinite +1/+1 counters on creatures you control

Kenrith, the Returned King

Mana Reflection

Activate Kenrith by paying {U}, causing an opponent to draw a card.
Hullbreacher replaces the card drawn with you creating two Treasure tokens.
Activate a Treasure token by tapping and sacrificing it to add {U}.
Repeat.


Infinite creature tokens

Activate Kenrith by paying {U}, causing an opponent to draw a card.
Hullbreacher replaces the card drawn with you creating a Treasure token.
Activate the Treasure token by tapping and sacrificing it to add {U}.
Kinnan triggers, adding a mana of any color.
Repeat.


Combos with "Hullbreacher"