Cleon
Legend
Ummmm, Undercommon for the last language? Some other human language would make sense, but that's not exactly an option. Infernal could work, too.
Either of those would work fine. Heck, why not just give it both - then we won't have to decide!
The general can speak Common, Draconic, Infernal and Undercommon.
Yeah, I just meant to ask if you're happy just copying, pasting, and modifying from one of the others.
Well if that's what you meant you should have said it.

How's this:
Special Weakness - Sword Rest (Ex): Each of the seven swords have a different special weakness. The General's is that its existence is tied to a sword rest that's used to store the crimson katana when the General is not carrying it. This sword rest is made of red-lacquered wood and has AC X, hardness Y, break DC Z, and weighs W lbs. Any damage done to the sword rest is also inflicted upon the General. Should the General be destroyed, the sword rest is also destroyed.