The Dark Magneton (11 / 82) card can be found in the Team Rocket 1St Edition set.
Recently sold 11 times and based on those sales is worth around £37.50.
Currently, there are 28 open listings for this card on ebay.
This card sells in the range of £0.01 to £93.07, making it highly volatile.
This Rare Holo card was illustrated by Miki Tanaka.