I have my player inflicted with dehydration as an ability. I've made a potion to hydrate the player permenantly, I hope. I've done the MSG, the Spell and the effect. All I need now is the event. If on drink existed would be great, so I need what kind of event to remove the dehydration?

Could you use an OnEffectStart event, when you drink the potion, to dispel the dehydration effect.