Talked it over with the DM and he agreed it should just be a thing that happens when I crit fail or get hit with a crit. No benefit, which, yeah, makes sense and I like it.
Don’t know if I want to have a ranged weapon, I don’t love crossbows or arrows because they’re just sorta dull and you can’t do much creatively with them. I chatted with the DM about the idea of maybe having a Froppy-style tongue lash attack, and he loved the idea but reworked it a little:
Oh man this is kind of a crazy idea, but I like it. Your poison only takes effect for as long as people touch you, and there’s just no way I can see the tongue dealing actual damage. So let’s do this: as an action you can attempt to grapple someone with your tongue if they’re up to 10 ft away from you. Your “to hit” bonus is your prof +dex. On their turn they can make an athletics or acrobatics check as an action to escape, dc is your str + prof + 8. As long as they’re grappled by you, they need to save against your poison.
So yeah. I love it.
One of my racial bonuses is that I have a fucking 25 ft vertical leap, so I could jump onto a chandelier or something and then tongue bind a gablin to poison em.