The Duraludon VMAX (219 / 203) card can be found in the Evolving Skies set.
Recently sold 12 times and based on those sales is worth around £11.07.
Currently, there are 8 open listings for this card on ebay.
This card sells in the range of £8.77 to £13.37, making it very stable.
This is a Rare Rainbow card.
The fact that it is a VMAX card makes it one of the more valuable cards.