The Team Aqua's Muk (8 / 34) card can be found in the Double Crisis set.
Recently sold 1 times and based on those sales is worth around £1.61.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £1.61 to £1.61, making it very stable.
This Rare Holo card was illustrated by Kouki Saitou.