The Deoxys EX (111 / 116) card can be found in the Plasma Freeze set.
Recently sold 11 times and based on those sales is worth around £21.37.
Currently, there are 7 open listings for this card on ebay.
This card sells in the range of £16.24 to £26.50, making it quite stable.
This Rare Ultra card was illustrated by 5ban Graphics.
The fact that it is a EX card makes it one of the more valuable cards.