Mainly based on DnD with a few twists on the base creature.
Ability Score Increase. Pseudodragons get dexterity score increases by 2, Strength decreases by 2, and one other ability score increases by 1. Age. Pseudodragons mature fairly rapidly, and reach adulthood around the age of 14. Most pseudodragons that make it to an old age can live to 120, but rare individuals may live much longer, and there are stories of pseudodragons over 200 years old.
Flight. Pseudodragons have a flying speed of 30 feet. For them to fly they must not be wearing medium or heavy armor, and they cannot hover. 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.
Pseudodragons have little interest in other creatures and prefer to avoid them. This causes these elusive creatures to make their homes in small caves or hollow trees. Mainly found in remote and loosely populated areas of the world. Depending on the climate different variants of pseudodragons can be found. The most likely places to run into one of these elusive creatures are deep forests, barren deserts, dark oceans, and desolate tundra.