The Espeon (4 / 113) card can be found in the Delta Species set.
Recently sold 7 times and based on those sales is worth around £36.47.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £29.23 to £43.71, making it quite stable.
This Rare Holo card was illustrated by Ryo Ueda.