The Mankey (81 / 110) card can be found in the Legendary Collection set.
Recently sold 7 times and based on those sales is worth around £21.58.
Currently, there is 1 open listing for this card on ebay.
This card sells in the range of £11.66 to £31.50, making it quite stable.
This Common card was illustrated by Sumiyoshi Kizuki.