The Forretress (H8) card can be found in the Skyridge set.
Recently sold 2 times and based on those sales is worth around £64.46.
Currently, there is 1 open listing for this card on ebay.
This card sells in the range of £55.43 to £73.49, making it quite stable.
This Rare Holo card was illustrated by Midori Harada.