The Raikou (28 / 144) card can be found in the Skyridge set.
Recently sold 3 times and based on those sales is worth around £10.88.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £9.78 to £11.98, making it very stable.
This Rare card was illustrated by Mitsuhiro Arita.