I just randomly had a probably stupid idea, but here goes any way: What if there were certain weapons with traces of bio-material or something like that that enables them to get experience like its wielder. Example: You start off with a level one katana, as you get more circles, you get more points that you can put into Damage, Precision or Speed, essentially these weapons would be able to have higher abilities than normal weapons, the downside is that they take some of your experience if you invest points into them or they cost more or something. Basically: Weapon levels up with its wielder (only if wielder chooses to) can grow stronger than normal weapons, there's a downside so the weapons aren't horribly abused. Maybe have some special ability for people who have bonded with their weapons like this? Sort of like bards with their instruments? Well I know this is a rocky idea, but please comment/shoot it down!

I like it...maybe make it a Knighthood ability...Weaponbond, or something. But to keep it active, maybe affix a constant mana drain.

Give Knights Runeblades! More Achaea!