I made this card back from Hearthstone, I thought I would start with the classic back and maybe make a few more. They are surprisingly tricky to make, those points - ugh! But it was a fun experience overall, very different from the standard stuff I tend to make. Still not happy with the colours, but they are close enough for a first attempt. There is some aqua glow-in-the-dark paint over the spiral in the middle, it looks really cool in a gloom room but does not last for very long. I made it a bit bigger than a standard card, so it is 84mm wide by 130mm tall.
Made from Super Sculpey/Sculpey Firm mix!
(Sorry for the poor photo quality)