Kouki Saitou is credited on Pokémon Trading Card Game cards since 2003, with artwork appearing through 2024. In this index, their illustrations are recorded across Platinum, Black & White, and Scarlet & Violet, with additional presence in series such as EX and Sword & Shield. The body of work includes Pokémon and Trainer cards.
Across these cards, Saitou’s approach is frequently cartoon-forward and colorful, with playful, lighthearted moods and energetic staging. Compositions tend toward balanced, clear setups—often character-focused—while palettes lean vibrant, with occasional warm or pastel accents and contrasting color. A representative card in this dataset is Xerneas (XY31). Among the most sought-after cards illustrated by Kouki Saitou is Charizard (ecard3-146).