The most valuable card illustrated by Shin-ichi Yoshikawa is Rayquaza ex (Deoxys) at $999, ahead of Venusaur ($210) and Cyclone Energy ($80).
Value counts each card once at its highest-priced printing. The homepage leaderboard additionally requires a priced rarity cohort, so its totals run slightly leaner.
By TCGplayer market price, the most valuable Shin-ichi Yoshikawa card is Rayquaza ex (Deoxys) at $999, followed by Venusaur (Expedition Base Set) $210, Cyclone Energy (Skyridge) $80, Unown (Unseen Forces Unown Collection) $62, Unown (Unseen Forces Unown Collection) $53. Prices are TCGplayer market for raw copies (any condition) and refresh daily.
TickerMint tracks 51 Pokemon cards illustrated by Shin-ichi Yoshikawa across 51 printings, with a combined market value of $2,161 counting each card once at its priciest printing.