Look past the front-of-card pokemon and Roselia is there — 3 times across the TCG, drawn between 2010 and 2016. Kouki Saitou and Yusuke Ohmura's work shows up most often.
These cameos cluster in HS—Unleashed most heavily; Kouki Saitou accounts for 2 of the appearances.
These cards feature indoor, indeterminate, running and cheerleader in their background art, illustrated by artists like Kouki Saitou and Yusuke Ohmura.
Roselia appears as a background cameo across 3 Pokémon cards.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2010–2016 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.