[K Peculier]

If it were up to me, I would have it so that the river sword only applies a 5% water debuff (up to 40%) for every basic attack landed and extends the duration up to or maintain at 4 rounds.

That way, if you're getting hit by giant amounts of water damage from things like Blood Spike and Scarlet twister, you at the very least have had time to think about your funeral before it becomes 40%.