The Rayquaza VMAX (218 / 203) card can be found in the Evolving Skies set.
Recently sold 13 times and based on those sales is worth around £175.00.
Currently, there are 7 open listings for this card on ebay.
This card sells in the range of £128.90 to £221.10, making it highly volatile.
This is a Rare Rainbow card.
The fact that it is a VMAX card makes it one of the more valuable cards.