The Machamp (16 / 144) card can be found in the Skyridge set.
Recently sold 1 times and based on those sales is worth around £15.35.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £15.35 to £15.35, making it very stable.
This Rare card was illustrated by Naoyo Kimura.