The Volcanion (31 / 131) card can be found in the Forbidden Light set.
Recently sold 3 times and based on those sales is worth around £1.61.
Currently, there are 6 open listings for this card on ebay.
This card sells in the range of £0.73 to £2.49, making it very stable.
This Rare Prism Star card was illustrated by Naoki Saito.