There's a ton of routes to go to buff Venomous out of the trash, but frankly, it isn't so simple because of how broke she could end up due to how her damage works.
Used to think she needed more comboability and actual safe options. A -5 meter burned burst launching off spray (think hell sparks), while getting rid of the variability gimmick, would address all her problems. More comboability, more safety, better armor breaking, and counter poke meta. Even if done while only allowing one spray per combo so you couldn't vortex, it would still be insane since she has access to +12 puddle oki if she has a consistent way to launch. In short, there's a reason I said I used to think that. She'd be busted, even with damage nerfs I suspect.
Then, after realizing how proficient her toolset is at strike/throw mixups, I started thinking the Cryomancer route of taking an animation from a string and making it into a command grab would work well for her. Specifically the animation off of f34 1+2 could potentially be turned into a special. If it was slow, maybe 19 or 20f, it could tick off f11 and just generally be a nightmare. But then you've got to deal with the can of worms that is giving a command grab to a character with a +12 vortex.
Basically, there's a reason I never expected her to be significantly buffed/fixed during the life of this game. Venomous is just too close to being outright cancerous.
