[MakeshiftWalrus]

Its current strength is undeniable and easily abused, expecially with weapons like Atlaua's Abaniko and Ensui, who both do water damage instead of the normal pierce/slash for the dagger and sword respectably That's a 40% damage amp for no effort, which is currently the largest damage amp in the game.

There should be a condition set, so you can't just murder people with it immediately. Even without a weakness if it gets nerfed to 30%, that's still 30% more damage on a follow-up with these two weapons in particular-- as well as any other water damage, of course.

What I propose instead of a stacking mechanic, is for the first hit of the weapon to apply a new status effect called 'Damp', which on itself does nothing and reset on the start of your own next turn. If the person in question is hit by the riversword again, on the same turn, it can apply the 40% damage roid.

At that point, at least you deserve it.