So in a recent errata and update, they brought the Hengeyokai out of Playtest. It still seems confusing though about the benefit for Nature's Mask in regards to being a hybrid of the animal and human forms.
You gain a movement benefit based on your form
For example, if you choose Cat for your animal form, you gain a climb speed equal to your speed.
So would you be getting the benefit only as the animal form or would you get it on hybrid form as well?