The Origin Forme Palkia V (167 / 189) card can be found in the Astral Radiance set.
Recently sold 18 times and based on those sales is worth around £38.50.
Currently, there are 8 open listings for this card on ebay.
This card sells in the range of £31.17 to £45.83, making it quite stable.
This is a Rare Ultra card.
The fact that it is a V card makes it one of the more valuable cards.