The Flareon Star (100 / 108) card can be found in the Power Keepers set.
Recently sold 3 times and based on those sales is worth around £177.57.
Currently, there are 8 open listings for this card on ebay.
This card sells in the range of £85.19 to £269.95, making it highly volatile.
This Rare Holo Star card was illustrated by Masakazu Fukuda.