Some of the 
Wildstock’s are too angry, and some are too passive, like jelly, you hit them but he just chews grass. Maybe should just add answering attak for angry one and for passive one - flee?!
Generally, all Wildstock should attack. It sounds like you’re encountering some Wildstock that do not attack at all. Is this occurring with specific Wildstock? How often are you encountering passive Wildstock?