GameGenic Sidekick 100+ XL Deck Box: Solid Black

Built for the Organized Player — GameGenic Sidekick 100+ XL in Solid Black

GameGenic's Sidekick 100+ XL is part of their Convertible line, engineered with more than just storage in mind. The defining feature here is adaptability: remove the lid entirely, attach it to the bottom of the box, or tilt and position the box in a wide variety of orientations to suit how you actually play. Powerful magnets keep everything locked shut when you're carrying it — and release cleanly when you're ready to open up at the table.

Capacity & Sleeve Compatibility

The XL designation means this box is built for the full Commander-sized experience. It holds 100 double-sleeved cards, making it a serious option for players who run inner sleeves for premium protection. Single-sleeved decks fit with room to spare, and the extra width gives your cards breathing room whether you're packing a 100-card Commander build or a thicker 60-card constructed deck with sideboard.

Convertible Design & Magnetic Closure

What separates the Sidekick 100+ XL from a standard box is the Convertible system. The lid isn't just a lid — it detaches and reattaches to the bottom of the box, letting you display your deck at an angle or access cards from a tilted position mid-game. The magnetic closure provides a firm, positive hold during transport while releasing intuitively during play. This is the kind of thoughtful engineering GameGenic is known for: features that solve real problems at the table rather than just looking good on a shelf.

Who It's For

The Sidekick 100+ XL Solid Black is the go-to for Commander players who double-sleeve their builds and want a deck box that keeps up with organized play habits. The clean, all-black finish keeps the focus on the cards — a strong choice for players who want their deck to do the talking. It also makes a sharp, practical gift for any player ready to move beyond a basic snap-close box into something that genuinely enhances their setup.

Specifications