The Dark Blastoise (3 / 82) card can be found in the Team Rocket Unlimited set.
Recently sold 8 times and based on those sales is worth around £45.00.
Currently, there are 17 open listings for this card on ebay.
This card sells in the range of £31.04 to £58.96, making it quite volatile.
This Rare Holo card was illustrated by Mitsuhiro Arita.