The Glaceon VMAX (209 / 203) card can be found in the Evolving Skies set.
Recently sold 6 times and based on those sales is worth around £100.00.
Currently, there are 41 open listings for this card on ebay.
This card sells in the range of £86.13 to £113.87, making it quite volatile.
This is a Rare Rainbow card.
The fact that it is a VMAX card makes it one of the more valuable cards.