The Darkrai-GX (SV70) card can be found in the Hidden Fates set.
Recently sold 7 times and based on those sales is worth around £23.00.
Currently, there are 23 open listings for this card on ebay.
This card sells in the range of £18.22 to £27.78, making it stable.
This Rare Shiny GX card was illustrated by 5ban Graphics.
The fact that it is a GX card makes it one of the more valuable cards.