Dire Wolf

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

Pack Tactics. The wolf has advantage on attack rolls against a creature if at least one of the wolfs allies is within 5 feet of the creature and not incapacitated.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (2d4+3) piercing damage. If the target is a creature it makes a DC 13 Strength saving throw falling prone on a failure.