I don't know if it has been said, but Marshadow/Malshadow is supposed to have a unique typing. However, the leak says Dark/Fire which is not unique at all in honesty.
But I want to remind people that some things, if the list is real, could be leaked wrong on purpose so they cannot get caught as easily, although I am not sure it would help. This is why I am kinda doubting the list is fake now. Why leak the list of names and not describe them like what was done in XY? I am not saying they are fake or real, but I am enjoying the speculation. I wouldn't mind either way. If they are fake, then we know nothing. I would love to see most leaks that we have be proven wrong completely, but I think the starter evos at the very least are real.
We also need to remember those fake Corocoro scans that looked completely real, but ended up being fake.
As for leaking pokemon and not people, the leakers rarely leak people or story. In most cases they only leak pokemon because that is what most people care about.