Werebear

The monster makes two attacks, using Handaxe or Rend in any combination. It can replace one attack with a Bite attack.

Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 10 (3d6 + 4) slashing damage.

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 17 (2d12 + 4) piercing damage. If the target is a Humanoid, it is subjected to the following effect. Constitution Saving Throw: DC 14. Failure: The target is cursed. If the cursed target drops to 0 Hit Points, it instead becomes a Werebear under the DM's control and has 10 Hit Points. Success: The target is immune to this monster's curse for 24 hours.

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage.

The monster shape-shifts into a Large bear-humanoid hybrid form or a Large bear, or it returns to its true humanoid form, or it returns to its true form. Its game statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn't transformed.