Werewolf

Medium humanoid (human, shapechanger), chaotic evil

Armor Class 11 (in humanoid form, 12 in wolf or hybrid form)

Hit Points 58 (roll:9d8+18])

Speed 30ft

STR

15 +2

DEX

13 +1

CON

14 +2

INT

10 0

WIS

11 0

CHA

10 0

Skills Perception +4

Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks that aren't silvered

Senses passive Perception 14

Languages Common (can't speak in wolf form)

Challenge 3

Keen Hearing and Smell. The werewolf has advantage on Wisdom (Perception) checks that rely on hearing or smell.
Shapechanger. The werewolf can use its action to polymorph into a wolf-humanoid hybrid or into a wolf, or back into its true form, which is humanoid. Its statistics, other than its AC, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

Actions

Multiattack (Humanoid or Hybrid Form Only). The werewolf makes two attacks: one with its bite and one with its claws or spear.
Bite (Wolf or Hybrid Form Only). Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 ( 1d8+2 ) piercing damage. If the target is a humanoid, it must succeed on a DC 12 Constitution saving throw or be cursed with werewolf lycanthropy.
Claws (Hybrid Form Only). Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 7 ( 2d4+2 ) slashing damage.
Spear (Humanoid Form Only). Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one creature. Hit: 5 ( 1d6+2 ) piercing damage, or 6 ( 1d8+2 ) piercing damage if used with two hands to make a melee attack.