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 attack rolls 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: 7 (2d4 + 2) piercing damage. If the target is a creature, it must succeed on a DC 11 Strength saving throw or be knocked prone.

Lightning Breath (Recharge 5-6). Bolt 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 9 (2d8) lightning damage on a failed save, or half as much damage on a successful one.