The Gardevoir EX (105 / 160) card can be found in the Primal Clash set.
Recently sold 6 times and based on those sales is worth around £0.93.
Currently, there are 7 open listings for this card on ebay.
This card sells in the range of £0.01 to £2.49, making it very stable.
This Rare Holo Ex card was illustrated by Eske Yoshinob.
The fact that it is a EX card makes it one of the more valuable cards.