The Gengar (5 / 92) card can be found in the Legend Maker set.
Recently sold 8 times and based on those sales is worth around £29.74.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £17.35 to £42.13, making it quite volatile.
This Rare Holo card was illustrated by Kouki Saitou.