The Nidoqueen (H21) card can be found in the Skyridge set.
Recently sold 1 times and based on those sales is worth around £47.45.
Currently, there is 1 open listing for this card on ebay.
This card sells in the range of £47.45 to £47.45, making it very stable.
This Rare Holo card was illustrated by Mitsuhiro Arita.