The Houndoom (12 / 144) card can be found in the Skyridge set.
Recently sold 1 times and based on those sales is worth around £14.99.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £14.99 to £14.99, making it very stable.
This Rare card was illustrated by Kimiya Masago.