Tiny Dragon, Neutral Good
Traits
Magic Resistance. The pseudodragon has Advantage on saving throws against spells and other magical effects.
Actions
Multiattack. The pseudodragon makes two Bite attacks.
Bite. Melee Attack Roll: +4, reach 5 ft. Hit: 4 (1d4 + 2) Piercing damage.
Sting. Constitution Saving Throw: DC 12, one creature the pseudodragon can see within 5 feet. Failure: 5 (2d4) Poison damage, and the target has the Poisoned condition for 1 hour. Failure by 5 or More: The Poisoned target also has the Unconscious condition until it takes damage or a creature within 5 feet of it takes an action to shake it awake.
Found on p.249 of MM2025 (Free Rules)