Traits

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 ft. of it that can understand a language.

Actions

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.