"Queen of the Yellow Turban Rebels 黄巾女将 (huáng jīn nǚ jiàng)"
Who is she:
The above question is one I wish I had the answer to! This character has been abuzz in many SGS threads in China: Who the hell is Bian Shi?! And why is she Queen of the Yellow Turbans?!
Let me tell you what i do know. There IS a Bian Shi in ROTK. In fact she is a true historical figure. Bian Shi was one of the wives of Cao Cao 曹操, and none other than the mother of Cao Pi 曹丕. She was highly respected and arguably Cao Cao's favorite wife (out of more than 15 wives/concubines).
But there was never any mention that Bian Shi had anything to do with Zhang Jiao 张角 and his Yellow Turban Army 黄巾军. This is probably where myths and fantasy combined. Do a quick Google cross reference of Bian Shi and Zhang Jiao and suddenly some interesting articles pop out. These articles appear to be fantasy novels of some sort (of which I am, unfortunately, not familiar with). In these articles, Bian Shi seems to refer to Zhang Jiao as 师兄 or "Senior", and they both seem to have some kind of god-like superpower to bring about Armageddon. The language in which they are written are modern, thus are probably fictional creations of modern day authors. In fact, the backdrop of these stories appear to be similar to the Final Fantasy franchise!
Perhaps these stories are the link between Bian Shi and the Yellow Turban Army?? Anyhow, do take this particular character with a pinch of salt, as she appears to be completely fictional (as a party to Zhang Jiao). Unofficial cards tend to have such issues, I guess? Sigh.