The Starmie V (TG13) card can be found in the Astral Radiance Trainer Gallery set.
Recently sold 8 times and based on those sales is worth around £30.76.
Currently, there are 6 open listings for this card on ebay.
This card sells in the range of £26.72 to £34.80, making it stable.
This is a Trainer Gallery Rare Holo V card.
The fact that it is a V card makes it one of the more valuable cards.