The Electrode ex (107 / 112) card can be found in the Firered and Leafgreen set.
Recently sold 4 times and based on those sales is worth around £16.58.
Currently, there are 12 open listings for this card on ebay.
This card sells in the range of £13.79 to £19.37, making it stable.
This Rare Holo Ex card was illustrated by Ryo Ueda.
The fact that it is a EX card makes it one of the more valuable cards.