Lycanthropy

As a consequence of being infected with Lycanthropy:
your Strength score is raised to 15, if it was not already higher.
you gain the Keen Hearing and Smell feature from the Werewolf stat block.
When you are damaged as the result of an attack, you must immediately succeed a DC 5 Wisdom saving throw or else undergo spontaneous and uncontrolled polymorphy. At the start of your next turn, you spend the turn transforming and must succeed a DC 15 Consitution saving throw or take 2d4 true damage.
If you survive, you assume the hybrid wolf form and lose control of your character. The effects of the polymoph last for 1d4+4 hours.
At the end of the period, you polymorph back to your human form and accrue 3 levels of exchaustion. At this time, you must make a DC 18 Consitution check. On a success, the disease reaches homeostasis and you may now freely polymorph to and from any of your lycanthropic forms as a standard action; you retain control of your character during these transformations.