Oswaldo KATO has been credited on Pokémon Trading Card Game releases since 2019, with artwork appearing through 2025. In this index, more than 80 cards are attributed to KATO, spanning the Scarlet & Violet and Sword & Shield eras. Set appearances include Paldea Evolved, Fusion Strike, and Astral Radiance, alongside additional placements across contemporary expansions and promos.
The work is primarily digital, often cartoonish and playful, with a cheerful, lighthearted tone. Compositions tend toward balanced layouts, frequently punctuated by dynamic movement, and supported by vibrant palettes that can shift into pastel and soft color ranges. A clear foreground focus is common, keeping subjects readable within open, inviting scenes. Ice Rider Calyrex VMAX{swsh6-203} is a representative card credit. Among the most sought-after cards illustrated by Oswaldo KATO is Origin Forme Palkia V{swsh10-167}.