(I'm not quoting that, it's way to extensivly detailed. I love it. :P )
@N_B and the Vladek Visage Conundrum!
I now entirely agree with your take on Vladek's Family Relations. The keyword being Legacy really clicks.
Still on the fence about giving Vladek powers, but if he did, It would be entirely from artifacts, or other outside sources and nothing from his own self... correct??? That's what I get from the limited LEGO Co. Storyline I've read...
Concerning the Mirror-Halls duel, I believe simply that the more extesive usage of the Presice and Manipulative Vladek makes him the one we will use.  The one shown in the Mirror Halls was when folks were still fiddliing with stuff. (Like how Matthias would just suddenly go ranting, lose his temper, or would otherwise be written unlike the Matthias we now know... :P Ah. Good times.) This reminds me, I GOTTA POST MORE P.D.!!!! :O
I remember that fffffplayer said that Super Wizard Master stayed in Morcia and studied magic. He wrote all of that into a book called "The Book of Morcia." Then the Wizard Master Dude travled somewhere else and created another magic book based on the magic research he did in that place. I don't remember the precise details, and I wasn't able to find the post where fffffplayer said that, so my above summary is quite general and vague.
Anyway, my point is that I was thinking that Morcian magic is entirely reliant on artifacts to channel magical energy through. The greatest Morcian magicians were the ones who could create powerful magical artifacts and use them in battle. The magic that Wizard Master studied in the other place that is not Morcia and that I forgot the name of was not reliant on magical objects, however, and so it became popular. Obviously, when given a choice between two types of magic, who would choose the type of magic that leaves you powrless if your artifacts are taken away? As such, the second type of magic would have become more widespread, while Morcian magic would be all but forgotten.
This would explain why all the magic seen in Knight's Kingdom was limited to artifacts, and it would also explain why Super Wizard Master decided to research another type of magic besides Morcian Magic. He wanted to create a magic that wasn't limited to artifacts, so he wrote his second book.
Obviouslly, since I'm building this off of fffffplayer's idea, its up to him to accept/veto the idea.