WanderingMystic
Adventurer
I knew that they had invisibility but I hadn't looked so couldn't remember if it was a bonus action or a spell casting action that is nice. I also wanted to look at some of the other 1/2 cr tiny options out there that might be good or thematic options.
Since they use your spell attack modifier when they attack with frog fang items like the War Wizard wand add the + bonus to their attacks as well which is nice and it doesn't use your action so 1d4 + 9 (averages out to 8 damage per round over the course of your career. Maybe more if invisible) damage isn't bad there is also the additional poison damage ina failed save but since it doesn't change their save DC to yours and since it is poison I don't even count it.
Since they use your spell attack modifier when they attack with frog fang items like the War Wizard wand add the + bonus to their attacks as well which is nice and it doesn't use your action so 1d4 + 9 (averages out to 8 damage per round over the course of your career. Maybe more if invisible) damage isn't bad there is also the additional poison damage ina failed save but since it doesn't change their save DC to yours and since it is poison I don't even count it.