The Leafeon VSTAR (GG35) card can be found in the Crown Zenith Galarian Gallery set.
Recently sold 26 times and based on those sales is worth around £25.84.
Currently, there are 10 open listings for this card on ebay.
This card sells in the range of £20.34 to £31.34, making it quite stable.
This Trainer Gallery Rare Holo V card was illustrated by Jiro Sasumo.