The Rayquaza EX (85 / 124) card can be found in the Dragons Exalted set.
Recently sold 14 times and based on those sales is worth around £3.64.
Currently, there are 27 open listings for this card on ebay.
This card sells in the range of £0.43 to £6.85, making it stable.
This Rare Holo Ex card was illustrated by Eske Yoshinob.
The fact that it is a EX card makes it one of the more valuable cards.