I am playing local co-op and unlocked the druid thread with my partner, and we both purchased/unlocked the class from the tailor. I talked to Violet first and received the snake stone, however, my partner did not. She has 22 snake fangs, and it still doesn't seem to work. I am not sure how many I had when I first talked to her. Does anyone what the magic number is, or if this is a bug?