Across 2 Pokémon TCG cards — drawn 2013–2019 — Grimer appears in the background art rather than as the featured pokemon. The cameos rotate through Mizue and Kagemaru Himeno and other contributors.
These cameos cluster in Legendary Treasures most heavily; Mizue accounts for 1 of the appearances.
2 cards with Grimer in the background spanning 2013–2019, with art by Mizue and Kagemaru Himeno.
Grimer appears as a background cameo across 2 Pokémon cards.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2013–2019 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.