The Kingdra (148 / 147) card can be found in the Aquapolis set.
Recently sold 10 times and based on those sales is worth around £126.58.
Currently, there are 8 open listings for this card on ebay.
This card sells in the range of £85.70 to £167.46, making it highly volatile.
This Rare Secret card was illustrated by Mikio Menjo.