Onyx

2026 Onyx Vintage Extended Baseball Mega Box

Coming Soon Expected November 2026

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2026 Onyx Vintage Extended Baseball Mega Box

Onyx Vintage Extended returns for 2026 with the next group of top baseball prospects. Every Mega Box delivers 10 autographs, which works out to one signed card in every pack, with on-card ink from names like Roch Cholowsky, Mike Sirota and Jaison Chourio.

Box Break

10 packs per box
10 cards per pack
10 autographs (1 per pack)

All counts are per box, on average.

Base & Parallels

The set builds on the original Onyx Vintage design, with limited-edition parallels you will only find in this release.

Inserts

Watch for scarce Diamond Avengers cards inserted at random.

Autographs

On-card prospect autographs drive the product, including inscribed versions and numbered parallels.

Free Shipping for orders over $99 (Lower 48 US States)

All products ship free to continental US locations if the order value is $99 and more. Any other locations, please use our shipping calculator in the shopping cart.