Some cards reward a closer look. Sigilyph is one of the pokemon that quietly appears in the background of 1 other card, painted by Yusuke Ohmura.
These cameos cluster in XY most heavily; Yusuke Ohmura accounts for 1 of the appearances.
These cards feature office, lab coat, smile and study in their background art, illustrated by artists like Yusuke Ohmura.
Sigilyph 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.