Look past the front-of-card pokemon and Clamperl is there — 1 time across the TCG, drawn between 2014 and 2014. Kagemaru Himeno's work shows up most often.
Of the 1 card, Phantom Forces contributes the largest cluster. The illustrator most often responsible is Kagemaru Himeno, whose Clamperl cameos appear in 1 of these cards.
1 cards with Clamperl in the background spanning 2014, with art by Kagemaru Himeno.
Clamperl appears as a background cameo across 1 Pokémon card.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2014 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.