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.

Multiattack. The dragon can use its Fighting Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 91d4 + 2) piercing damage.

Claw. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 6 (1d6 +1) slashing damage.

Tail. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 6 (1d8) bludgeoning damage.

Breath Weapons (Recharge 5–6). The dragon uses one of the following breath weapons.

Fire Breath. The dragon exhales fire in a 60-foot cone. Each creature in that area must make a DC 21 Dexterity saving throw, taking 63 (18d6) fire damage on a failed save, or half as much damage on a successful one.