Hound

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

The hound has advantage on attack rolls against a creature if you are within 5 feet of the creature and you aren't incapacitated

Once you reach 6th level in this class, the hound's attacks count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

Melee Weapon Attack: PB x 2 to hit, reach 5 ft., one target. Hit: 2d4 piercing damage. If the target is a creature, it must succeed on a Strength saving throw with a DC equal to 8 + PB x 2 or be grappled by the hound or knocked prone (the hound's choice).