Release details, box information, product images, marketplace links, and collector reviews.
2026 Leaf Electrum Baseball is comprised exclusively of autographs, and every card in the product has a production run of /25 or fewer.

Primarily featuring top prospects from throughout the game, Leaf has also included some current standouts and numerous legends on the checklist.

Hobby boxes have six autographs, while Super Mega boxes have 10 total autographs, including two exclusive Vibrance or Flash cards.

The product starts off with Base Autographs (/25), which have nine additional varieties:

Additional single-signed concepts (/25 or fewer) include Achromatic, Crystallography, and Elektron.

Electrum Avenue Autographs start at /15 and feature a simplistic design.

Leaf has introduced a pair of color-themed sets to the product. White Gold (/10) and Green Gold (/4) cards pop with color and each have 1/1 Gold parallels.

The Harlequin Collection features an expansive checklist (189 players), and every card from the concept is a 1/1. Each player has 10 different versions of their Harlequin Collection card.
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