The Pokémon TCG hides unknown in the background art of 6 cards. The cameos sit across 2005–2026, with Kouki Saitou, Kanako Eo and Naoyo Kimura responsible for several of them.
These cameos cluster in Call of Legends most heavily; Kouki Saitou accounts for 1 of the appearances.
6 cards with unknown in the background spanning 2005–2026, with art by Kouki Saitou, Kanako Eo, Naoyo Kimura and more.
unknown appears as a background cameo across 6 Pokémon cards.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2005–2026 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.