Keen Senses. The pseudodragon has advantage on Wisdom (Perception) checks that rely on sight, hearing, or smell.

Magic Resistance. The pseudodragon has advantage on saving throws against spells and other magical effects.

Limited Telepathy. The pseudodragon can magically communicate simple ideas, emotions, and images telepathically with any creature within 100 feet of it that can understand a language.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage.

Sting. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d4 + 2) piercing damage, and the target must succeed on a DC 11 Constitution saving throw or become poisoned for 1 hour. If the saving throw fails by 5 or more, the target falls unconscious for the same duration, or until it takes damage or another creature uses an action to shake it awake.

Vivi is very protective of it'd owner and will try to take bites out of the people that it doesn't want to get close to its owner.

Vivi will protect its owner to the death but will listen even to its owner or people that it trusts.

when on higher places it will look down on people that it doesn't know or trust, and will glare at those it doesn't like.

it also really playful when happy with its owner and is comfortable with its environment or if it knows that it needs it owner to be happy.