The Magneton (20 / 144) card can be found in the Skyridge set.
Recently sold 1 times and based on those sales is worth around £8.73.
Currently, there is 1 open listing for this card on ebay.
This card sells in the range of £8.73 to £8.73, making it very stable.
This Rare card was illustrated by Kouki Saitou.