[Sarinpa1]

I haven't really seen a single argument againts why the weakness being consumed by first water damage source is a bad idea.
Yet removing the almost assured (unless someone actualy wears lets say shackles) Weak! message will make the sword practicaly unusable, because it'd simply no longer be worth momentum to strike with it. Nor the stat investment necesary to actualy hit with it.
Same goes with build-up. You'll actualy have to dedicate yourself to swordplay stats (And likely classes.) to effectively use this.