The Flareon Star (100 / 108) card can be found in the Power Keepers set.
Recently sold 2 times and based on those sales is worth around £246.28.
Currently, there are 6 open listings for this card on ebay.
This card sells in the range of £123.02 to £369.54, making it highly volatile.
This Rare Holo Star card was illustrated by Masakazu Fukuda.