The Dark Vaporeon (9 / 110) card can be found in the Legendary Collection set.
Recently sold 11 times and based on those sales is worth around £87.30.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £61.83 to £112.77, making it highly volatile.
This Rare Holo card was illustrated by Mitsuhiro Arita.