Background cameos let illustrators wink at the wider Pokédex. Sliggoo earns 1 of those moments across 2015, distributed among Saya Tsuruta and other contributors.
These cameos cluster in Ancient Origins most heavily; Saya Tsuruta accounts for 1 of the appearances.
These cards feature cave, door, stalactites and stalagmites in their background art, illustrated by artists like Saya Tsuruta.
Sliggoo appears as a background cameo across 1 Pokémon card.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2015 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.