When you mark one or more Hit Points, you can also mark a Stress to enter your Wolf Form. While in this form, gain a d10 Wolf Die that you add to all attack and damage rolls. When you would gain a Hope while in Wolf Form, you mark a Stress instead.

When you mark your last Stress while in Wolf Form, you go into a Frenzy. Roll a number of d20s equal to your tier and automatically deal that much physical damage to all creatures within Very Close range. Then drop out of Wolf Form.