The most valuable card illustrated by Mékayu is Drampa (Temporal Forces) at $27, ahead of Slakoth ($13) and Kangaskhan ($10).
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 Mékayu card is Drampa (Temporal Forces) at $27, followed by Slakoth (Surging Sparks) $13, Kangaskhan (Destined Rivals) $10, Shelmet (White Flare) $7, Slowbro (Pitch Black) $7. Prices are TCGplayer market for raw copies (any condition) and refresh daily.
TickerMint tracks 15 Pokemon cards illustrated by Mékayu across 17 printings, with a combined market value of $71 counting each card once at its priciest printing.