Alpha Dire Wolf

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

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: 12 (2d6 + 5) piercing damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.

Snarl. The wolf gives a menacing growl. All creatures within a 15 ft radius must make a DC 13 Wisdom saving throw or be frightened of the wolf for 1 minute. Creatures the wolf is friendly towards have advantage on their saving throws. At the start of each turn, a creature can remake the saving throw, and on a success are no longer frightened of the wolf.