User blog comment:Master Sima Yi/Assassinews 19-03-'14 – Two Assassin's Creeds for 2014?: Unity and Comet/@comment-4928711-20140612183744/@comment-5174994-20140614114756

Ok, the link works now. Thanks :)

I definitely think that the hidden blades should be able to be upgraded. How exactly would the upgrades work for it though? How would it make it anymore functional?