The Raichu ex (97 / 106) card can be found in the Emerald set.
Recently sold 1 times and based on those sales is worth around £52.71.
Currently, there are 6 open listings for this card on ebay.
This card sells in the range of £52.71 to £52.71, making it very stable.
This Rare Holo Ex card was illustrated by Mitsuhiro Arita.
The fact that it is a EX card makes it one of the more valuable cards.