Keen Hearing and Smell. The werewolf has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Pack Tactics. The werewolf has advantage on an attack roll against a creature if at least one of the werewolf's allies is within 5 feet of the creature and the ally isn't incapacitated.

Regeneration. The werewolf regains 10 hit points at the start of its turn. If the werewolf takes necrotic damage or bludgeoning, piercing, or slashing damage from a silvered weapon, this trait doesn't function at the start of the werewolf's next turn. The werewolf dies only if it starts its turn with 0 hit points and doesn't regenerate.

Multiattack. The werewolf makes two attacks: two with its spear (humanoid form) or one with its bite and one with its claws (wolf or hybrid form).

Bite (Wolf or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage. Instead of dealing damage, the werewolf can grapple the target (escape DC 11). Additionally, if the target is a humanoid, it must succeed on a DC 13 Constitution saving throw or be cursed with werewolf lycanthropy.

Claws (Wolf or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 8 (2d4 + 3) slashing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.

Spear (Humanoid Form Only). Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 20/60 ft., one creature. Hit: 6 (1d6 + 3) piercing damage, or 6 (1d8 + 3) piercing damage if used with two hands to make a melee attack.

Shapechange. The werewolf polymorphs 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 melds into the new form. It reverts to its true form if it dies.