The Mew (10 / 92) card can be found in the Legend Maker set.
Recently sold 2 times and based on those sales is worth around £32.66.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £24.29 to £41.03, making it quite stable.
This Rare Holo card was illustrated by Kouki Saitou.