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.You can also use this spell to detect the presence of thinking creatures you can't see. When you cast the spell or as your action during the Duration, you can Search for thoughts within 30 feet of you. The spell can penetrate barriers, but 2 feet of rock, 2 inches of any metal other than lead, or a thin sheet of lead blocks you. You can't detect a creature with an Intelligence of 3 or lower or one that doesn't speak any language.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage.
Thunderous Flash. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d4 + 2) thunder damage, and the target must succeed on a DC 11 Constitution saving throw or have disadvantage on attack rolls until the end of its next turn. If the saving throw fails by 5 or more, the target falls blinded until the end of its next turn.