Beowolf

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

Grimm Detection. Grimm can sense negative emotions out of a range of 1 mile. Up to pinpoint accuracy within 60ft. A hidden humanoid within 60ft must make a DC 10 wisdom saving throw while in combat in order to avoid detection.

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

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 3) piercing.

Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage.