Before the modern TCG existed, before rarity symbols, before holographics, there were the Bandai Carddass Pocket Monsters cards — the earliest mass‑produced Pokémon cards ever released. This 1997 Onix card, FILE No.095, is one of the foundational artefacts of the franchise: a data‑driven collectible that predates the trading card game and captures Pokémon in its raw, pre‑TCG form.
Onix appears here not as a battling card, but as a geological creature catalogued like a specimen — complete with measurements, encounter data, and a description of its evolving mineral hardness. It is a perfect fusion of early Pokémon world‑building and geological imagination.
Card Details
Card Name: イワーク (Onix)
Series: Bandai Carddass Pocket Monsters
File Number: FILE No.095
Release Year: 1997
Publisher: Bandai / Banpresto
Format: Data File Card (non‑TCG)
Language: Japanese
Description
The front of the card features Onix emerging from a pixel‑patterned background, a visual echo of the Game Boy aesthetic of the era. The back provides detailed Pokédex‑style information: height, weight, encounter rates for Red/Blue/Green, and a description noting that as Onix grows, its body becomes harder and eventually resembles black diamond — a striking geological detail that predates the introduction of Steelix.
The card also lists its move “いかり” (Rage), complete with PP value and behavioural notes, reinforcing the hybrid nature of these early cards: part Pokédex, part strategy guide, part collectible.
Collector’s Notes
This Onix card is a vintage Japanese artefact from the earliest days of Pokémon merchandising. Sold through Carddass vending machines, these cards were among the first structured Pokémon collectibles ever printed, forming a proto‑TCG ecosystem before the official game launched.
Geologically, Onix is one of the most explicit rock‑type designs in the franchise. Its segmented boulder body, tunnelling behaviour, and mineral evolution into a diamond‑like form make it a natural centrepiece for the GeoPik Museum. The 1997 flavour text captures a moment before Steelix existed, when Onix’s “black diamond” transformation was a mysterious endpoint rather than a known evolutionary path.
The copyright block — featuring Nintendo, Creatures, Game Freak, TV Tokyo, ShoPro, and JR Kikaku — reflects the multimedia origins of Pokémon, tying the card to the anime, games, and early merchandising networks.
As a historical object, this card represents the pre‑TCG era, the birth of Pokémon collecting, and the geological imagination that shaped many early designs.
