The Jolteon (H12) card can be found in the Skyridge set.
Recently sold 1 times and based on those sales is worth around £97.26.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £97.26 to £97.26, making it very stable.
This Rare Holo card was illustrated by Hikaru Koike.