@Raijinslayer I've also added another possible poison idea for Eve. What if her poison weakened a gem's durability down to her own level? That can lead to so many disasters, especially with gems like Amber, Zircon, and Mars.
So all the possible Eve poison ideas thus far are:
Something akin to hydrocarbon toxicity
Something akin to smoke inhalation
Alteration of emotions
Impediment of judgement
Loss of durability
Edit: thought of another one
Extreme burning sensations (the very thing she feels whenever she overuses her powers)
Thoughts?