The Sabrina's Alakazam (16 / 132) card can be found in the Gym Challenge Unlimited set.
Recently sold 11 times and based on those sales is worth around £27.99.
Currently, there are 44 open listings for this card on ebay.
This card sells in the range of £15.79 to £40.19, making it quite volatile.
This Rare Holo card was illustrated by Ken Sugimori.