The Rocket's Scyther (13 / 132) card can be found in the Gym Heroes Unlimited set.
Recently sold 13 times and based on those sales is worth around £28.75.
Currently, there are 34 open listings for this card on ebay.
This card sells in the range of £20.61 to £36.89, making it quite stable.
This Rare Holo card was illustrated by Ken Sugimori.