Grimnir Forest Wolf

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

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

The wolf's pack rolls initiative with advantage and cannot be surprised, if conscious. A creature the wolf cannot see does not have advantage on attack rolls against it.

Melee Weapon Attack: PB +3 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) + PB piercing damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone.