Yoshinobu Saito is credited on Pokémon Trading Card Game artwork from 2013 to 2023, spanning more than 60 cards. Credits appear most frequently in the Sun & Moon series, with substantial representation in Lost Thunder and Unified Minds, and additional work in Sword & Shield.
The illustrations are predominantly digital, combining realistic rendering with clean edges and clear, focused staging. Compositions tend toward simple, balanced layouts, often emphasizing a single subject with foreground clarity and occasional action-driven framing. Color choices frequently lean vibrant and contrasting, with bright accents and intermittent metallic or monochrome treatments. A representative card is Latios-GX (SM11 78). Among the most sought-after cards illustrated by Yoshinobu Saito is Sceptile-GX (SM8 216).