Look past the front-of-card pokemon and Houndour is there — 1 time across the TCG, drawn between 2003 and 2003. Hajime Kusajima's work shows up most often.
Of the 1 card, Dragon contributes the largest cluster. The illustrator most often responsible is Hajime Kusajima, whose Houndour cameos appear in 1 of these cards.
1 cards with Houndour in the background spanning 2003, with art by Hajime Kusajima.
Houndour appears as a background cameo across 1 Pokémon card.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2003 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.