Imma have to say no to this, I already explained on discord but there was a lot of discussion so I'll post my reasons here.

I know you intended this to be a villain but the concept just doesn't work. Being level 24 in an MMO isn't just an aesthetic choice, there are a lot of setbacks they would have to deal with that a high level subclass wouldn't help with. In almost all MMOs, crafting is tied to your subclass so making these poisons is totally viable but powerful items are tied to your character level, and being level 24, the poisons you can use are going to do very little against even the lowest level party member so far who is level 48. The weapons they have would be level locked as well making their attacks just do very little damage in general and it just doesn't work for this kind of RP, sorry.