Werebear
Small monstrosity, neutral good
Armor Class 15 (natural armor)
Hit Points 135 (18d8 + 54)
Speed 30 ft., swim 15 ft., climb 30 ft.
str
19 (+4)
dex
10 (+0)
con
17 (+3)
int
11 (+0)
wis
12 (+1)
cha
12 (+1)
Skills Perception +7
Senses darkvision 60 ft., passive Perception 17
Languages Common (can't speak in bear form)
Challenge 5 (1,800 XP)
Actions
Bite. Melee Attack Roll: +7, reach 5 ft. 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 werebear's curse for 24 hours.
Handaxe. Melee or Ranged Attack Roll: +7, reach 5 ft or range 20/60 ft. 14 (3d6 + 4) Slashing damage.
Multiattack. The werebear makes two attacks, using Handaxe or Rend in any combination. It can replace one attack with a Bite attack.
Rend. Melee Attack Roll: +7, reach 5 ft. 13 (2d8 + 4) Slashing damage.