The Rocket's Scyther (13 / 132) card can be found in the Gym Heroes Unlimited set.
Recently sold 8 times and based on those sales is worth around £21.75.
Currently, there are 23 open listings for this card on ebay.
This card sells in the range of £13.09 to £30.41, making it quite stable.
This Rare Holo card was illustrated by Ken Sugimori.