The Sharpedo ex (104 / 107) card can be found in the Deoxys set.
Recently sold 4 times and based on those sales is worth around £25.40.
Currently, there are 5 open listings for this card on ebay.
This card sells in the range of £12.38 to £38.42, making it quite volatile.
This Rare Holo Ex card was illustrated by Hikaru Koike.
The fact that it is a EX card makes it one of the more valuable cards.