"An everyday man gets thrown into the world of twilight thousands of years before the start of the plot. With immortality and incredible abilities. How will this man's presence change the outcome of the original story?" [ this is a slow-burn fanfiction; the MC is just trying to experience life and enjoy it, not to take over the world and rule from the shadows.] I do not own twilight or the characters of the twilight world, all that belongs to me are my own characters.
I think the purple card is the amethyst card in MW. Shenming and the card's spirit was transported to sinkhole's domain after the distraction of the wall. The soul emperor during that time wanted to get the amethyst for him to conquer each races. But sadly his plan ended in failure. And the amethyst was transported to eart where yiyun have the chance on getting it.