Make the Antidote Vessel reduce duration in percentages
I think the Antidote Vessel would be more balanced if it reduced the effect duration in % rather than a fixed value. Not every effect should last 5 seconds only. Maybe a reduction of 50% or 70% in duration would be more balanced. And perhabs it should be configurable if the player wants the vessel to work in a fixed value or percentages
I will probably rework the Antidote Vessel at some point, since I agree that setting the duration to 5 seconds regardless of the effect doesn't always make sense. Reducing the length of the effects by some factor is one idea. I might also limit the effects that it applies to (just poison and/or wither, for example), and grant complete immunity instead (configurable, of course).