Ursathropy

Having a chance encounter with a Lycanthrope, namely one of the Werebear variety, you were bitten as a result. The transferred the lycanthropic curse of the Werebear. You gain the following benefits.

• Lycan Resistance. You can resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks that aren't silvered
• Shapechanger. You can use a bonus action to polymorph into a Large bear-humanoid hybrid or into a Large bear, or back into your true form. Your statistics, other than your size and AC, are the same in each form. Any equipment you are wearing or carrying isn't transformed. Your movement speed in Bear or Hybrid form is 40 ft., and you gain a 30 ft. climbing speed. You revert to your true form if you die.
• Moonlit Strength. You gain a Strength of 19, if your strength isn't already higher. Attack and damage rolls for your natural weapons are based on Strength.
• Natural Weapons. You gain two natural weapons which can only be used in your Bear or Hybrid form; a Bite and Claw attack.  Your bite attack deals 2d10 piercing damage, and on a hit if the target is humanoid must succeed a Constitution saving throw (DC= 8 + your proficiency bonus + your Constitution modifier) or gain werebear lycanthropy. Your claw attack deals 2d8 slashing damage.
• Multiattack. You can make two claw attacks.