The Glaceon VMAX (209 / 203) card can be found in the Evolving Skies set.
Recently sold 23 times and based on those sales is worth around £113.11.
Currently, there are 38 open listings for this card on ebay.
This card sells in the range of £97.05 to £129.17, 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.