User blog comment:Gabehas1/AI: It's Fun/@comment-24528129-20160417175358

I'd say Treeokin but i'm not sure if it would be that easy because of the whole different weapons thing

if you can do items then i'd then say Shadowflame Staff except probably nerf the damage. May be hard to prevent the "4 only" thing so if that's the case make it post-plantera or something not sure.