Chipmunk

Discrete, lurk in the shadows, a small annoying Dodger

Chipmunks only have one profession available: Spy
Chipmunk are nimble creature able to explore and climb on anything that isn't a complete ceiling. While not very strong in combat, they can provide assistance by dealing cheap damage to enemies, being effective source of damage that is not worth attacking compared to other bigger animals.

The Chipmunk play-style gather most utility outside of combat, deceiving animals, blend to the background, being able to be exceptionally stealthy, using herbs to gather the upper paws before the battle may even start.

The Chipmunk (and the Squirrel) is the animal with the lowest amount of health and have a disadvantage on STR, battling alone with a Chipmunk is simply a bad idea, just run like the small critter that you are.

The homebrew additions focus mainly on buffing the chipmunk in battle, plainly, making you even more dodgy the more you hit someone.
The concept is creating a synergy with some herb to early buffing the animal and sustaining that buff with their passive tactic