The Gardevoir ex (93 / 101) card can be found in the Dragon Frontiers set.
Recently sold 3 times and based on those sales is worth around £46.95.
Currently, there are 10 open listings for this card on ebay.
This card sells in the range of £31.86 to £62.04, making it quite volatile.
This Rare Holo Ex card was illustrated by Masahiko Ishii.