Background cameos let illustrators wink at the wider Pokédex. Raikou earns 2 of those moments across 2005–2010, distributed among Ryo Ueda and Kouki Saitou and other contributors.
These cameos cluster in HS—Undaunted most heavily; Ryo Ueda accounts for 1 of the appearances.
These cards feature roaring, fierce, abstract and building in their background art, illustrated by artists like Ryo Ueda and Kouki Saitou.
Raikou appears as a background cameo across 2 Pokémon cards.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2005–2010 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.