Day of the Dead is an oversized PET mammoth promo built entirely from 1 of 1s. Every card in the release — signed or unsigned, every foil, every plate — is a 1/1. Each subset is printed in two parallel artworks: the English <b>Day of the Dead</b> treatment and the Spanish <b>Día de Muertos</b> treatment, each with its own plates. The Base set runs an eight-foil board; the Mammoth True Color Match 1 of 1 and True 1 of 1 subsets are Rainbow-foil only.
Every subset carries separate Autograph and Base versions. Autograph codes append a trailing A after the initials (‹INI›). Where a digit follows the initials (‹INI›1 / ‹INI›2), that number is the player pose — the same subject shot in two different poses, each its own card. On autographs the pose digit sits before the A (e.g. ‹INI›2A). All boards — signed and unsigned — are 1 of 1.