Day of the Dead Mammoth Hobby is a multi-sport oversized PET release built entirely from 1 of 1s — signed or unsigned, every foil, every plate. Each card type comes in two separate subsets: the English Day of the Dead design and the Spanish Día de los Muertos design. The Base subsets run seven foils, and the autographed Base cards add Mojo and Island; the 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.