The Pokémon TCG hides Psyduck in the background art of 28 cards. The cameos sit across 2000–2024, with Naoki Saito, Sumiyoshi Kizuki and Ken Sugimori responsible for several of them.
These cards feature indeterminate, joyful, standing and happy in their background art, illustrated by artists like Naoki Saito, Sumiyoshi Kizuki and Ken Sugimori.