The Salamence ex (96 / 108) card can be found in the Power Keepers set.
Recently sold 9 times and based on those sales is worth around £34.54.
Currently, there are 10 open listings for this card on ebay.
This card sells in the range of £16.19 to £52.89, making it quite volatile.
This Rare Holo Ex card was illustrated by Mitsuhiro Arita.
The fact that it is a EX card makes it one of the more valuable cards.