The Articuno EX (132 / 135) card can be found in the Plasma Storm set.
Recently sold 12 times and based on those sales is worth around £24.70.
Currently, there are 7 open listings for this card on ebay.
This card sells in the range of £14.00 to £35.40, making it quite volatile.
This Rare Ultra card was illustrated by Toyste Beach.
The fact that it is a EX card makes it one of the more valuable cards.