Butterscotch

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

Unwavering Loyalty: The dog will always follow the commands of an NPC/PC that they have a positive relationship with (i.e. the dog's owner).

Puppy Dog Eyes: Any attack rolls made on the dog will have disadvantage.

Bark: The dog uses a bonus action to have a creature within 15ft of it make a DC 11 Wisdom saving throw or become frightened until the end of the dog’s next turn. The targeted creature(s) must be capable of hearing in order for this condition to take effect. Creatures affected by the Unwavering Loyalty trait automatically succeed this saving throw.

Lick Wounds: The dog uses an action to lick his wounds to recovery 1hp.

Play Dead:  If an enemy creature melee attack against him. He will roll over and play dead. The creature must make an Intelligence saving throw DC 11 to know if the dog is faking death. On a successful save they will continue their attack on the dog. On a fail the creature redirects their attack. They roll again for their new attack.