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

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

Bite. Melee Weapon Attack: +1 to hit, reach 5 ft., one target. Hit:1 (1d4 - 1) piercing damage.