Boat dog

Potty: When Boat dog is located a potty magically materialises in an occupied space that boat dog can see. The potty weighs zero lbs. and must be carried by one member of the party. Boat dog spend his long rest on the potty.

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

Inflatable Boat: Boat dog carries an inflatable aquatic vehicle built to hold up to 2 medium or small creatures, 1 large or 5 tiny creatures.

Who's a good boy? Boat dog is so he gets advantage on all charisma checks made to persuade or charm a creature.

Minor Immortality: If dropped to zero hit points boat dag is transported to his potty wherever that might be. Until the party takes a long rest boat dog is unconsious.

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage. If the target is a creature, it must succeed on a DC 11 Strength saving throw or be knocked prone.

Mini Fireball (2/day): Boat dog creates a fireball with a radius of 10. Dealing 2d6 fire damage on a failed save and half as much on a successful one. The same range as a normal fireball. Boat dog uses his charisma for the DC.