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Roll for initiative—your dice deserve a lair as legendary as the monsters you face.
Dungeons & Dragons · New Release
Ultimate Guard Squaroes: D&D Deck Boxes That Level Up Your GameModular, collectible, and built for adventurers—the Boulder 100 meets Dungeons & Dragons.
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| Dungeons & Dragons |
| Dungeons & Dragons | RPG Games | Card Protection |

Ultimate Guard Squaroes bring the next generation of deck boxes to Dungeons & Dragons—modular, collectible, and stamped with the iconic monsters that have haunted campaigns for five decades.
Built on the Boulder 100 chassis (the gold standard for rigidity and security), Squaroes hold up to 100 double-sleeved cards and connect magnetically to form a grid. Each D&D design is a one-time print run; once a creature is gone, it's gone.
Wave 1 includes five core designs, one rare (Acererak the lich), and an Arkhive 800 collector's case styled after the Tomb of Annihilation. Whether you're sleeving a Commander deck, organising spell cards for your wizard, or building a display wall, these are the deck boxes that double as dungeon décor.
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Want alerts on RPG and tabletop restocks?
From dice trays to limited accessories, we'll let you know when the gear you need is back in stock.
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WHAT ARE SQUAROES?
Boulder Quality, Modular Design, Collectible ArtSquaroes are Ultimate Guard's answer to the question: what if a deck box was also a building block? Each one is a fully printed Boulder—sturdy polypropylene, secure magnetic closure, easy one-handed access—with flat sides and embedded magnets so you can stack them into grids, towers, or walls. The D&D Wave 1 boxes hold 100 double-sleeved or 120 single-sleeved standard- or Japanese-sized cards (Magic, Pokémon, Lorcana, Yu-Gi-Oh!, One Piece, Flesh and Blood, Riftbound—anything TCG). Made in Germany from 78% renewable materials. Each design is a limited one-time printing. Ultimate Guard does not restock Squaroes; when a creature sells out, that artwork is retired. If you want the Beholder or the Gelatinous Cube on your shelf, this is the window. |
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Five Iconic Monsters, One Rare Lich, One Collector's Case
All designs compatible with any TCG, RPG spell cards, or your Commander decks.
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THE COLLECTOR'S CASE
Arkhive 800+: Tomb of Annihilation EditionThe Arkhive 800+ is Ultimate Guard's flagship mass-storage solution, reimagined for Dungeons & Dragons with Tomb of Annihilation key art wrapping the exterior. It holds up to eight Squaroes (or 800+ double-sleeved cards in the open interior), with a magnetic closure, removable dividers, and a reinforced structure that doubles as display furniture. Stack your Beholder, Mimic, and Acererak inside; slide the case onto a shelf; pull one box when you need it. The Arkhive is currently on backorder—join the waitlist above and we'll alert you the moment it arrives. |
Compatibility note: Squaroes are designed for Ultimate Guard sleeves. Sleeves from other manufacturers may affect capacity. For 100 double-sleeved cards, pair with Katana or Cortex sleeves and Katana Inner Sleeves. |
Why Squaroes Over a Standard Boulder?
Modularity. Boulders are great; Squaroes let you build a system. Snap six together for a Commander night. Wall-mount twenty for a card library. Rearrange on a whim.
Collectibility. Each print run is final. D&D wave 1 will not restock once inventory is gone—Ultimate Guard retires the artwork and moves to new licenses or new waves. If you want a Gelatinous Cube deck box in five years, you're hunting the secondary market.
Display value. These are Dungeons & Dragons art pieces, not generic boxes. The Beholder stares from your shelf. The Mimic ambushes your playmat. The Owlbear… is an Owlbear. For players who keep their decks visible (open shelving, game-room walls, convention tables), Squaroes are part of the aesthetic.
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Build Your Squaroes Collection
Five designs in stock now, with Acererak (rare) and the Arkhive 800+ on backorder. Grab the creatures you want before this wave sells out—these prints won't return.
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