Bolt

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: +4 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 2) piercing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.

Lightning Breath (Recharge 5-6). Flame exhales a blast of blue lightning in a 30 foot line. Each creature in that area must make a DC 13 Dexterity saving throw, taking 7 (2d6) lightning damage on a failed save, or half as much damage on a successful one.