Your Dexterity score increases by 2, and your Intelligence score increases by 1.

Pseudodragons, being cousins of true dragons, share their long life. They mature at the age of 5 and can live for 160 years.

Most pseudodragons are pleasant in demeanor, commonly being neutral leaning towards good. Extreme and evil alignments are incredibly rare, but not unheard of.

Pseudodragons are commonly cat-sized, with their tail equal length to their bodies, they stand to about a foot at the shoulder and are often 2-3 feet long. Your size is Tiny.

Your base walking speed is 15 feet and you have a flying speed of 60 feet.

You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.

You are proficient in the Perception skill.

You can magically communicate simple ideas, emotions, and images telepathically with any creature within 100 feet of you that can understand a language. This form of telepathy doesn't allow the receiving creature to telepathically respond.

You can speak, read, and write Common and Draconic. 

You may be the smallest of the dragons but you are still a dragon. Your creature type is dragon.

When you make a melee attack, as a bonus action you can attempt to strike a creature with your tail dealing 1d4 piercing damage. You are considered proficient with this attack and it uses your Dexterity modifier. In addition, when you do this, you may attempt to poison the creature forcing them to make a Constitution saving throw equal to 8 + your proficiency bonus + your Constitution modifier. On a failed save, the target becomes poisoned for 1 minute. 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. You cannot use this poison again until you finish a long rest.