Chewu

Archetype. Artillery specialize in ranged combat. They fire quills, spines, fireballs, or bolts of energy from a safe distance. They typically possess the cunning required to pick off vulnerable targets but usually aren't capable of advanced intellectual thought. 

Elemental Resistance. Chewu is resistance to psychic energy. 

Elemental Body. A creature that touches Chewu or hits it with a melee attack while within 5 ft of it takes 4 (1d8) psychic damage.

Pot Shot. Ranged Weapon Attack: +4 to hit, reach 50/100 ft., 1 target. Hit: 6 (1d8 + 2) [piercing] damage. 

Breath Weapon. Chewu an exhale a type of elemental energy and gains the Breath Weapon trait. You can use your action to exhale destructive energy. When Chewu use your breath weapon, each creature in the area of the exhalation must make a Intelligence saving throw, DC 12.  A creature takes 2d6 damage on a failed save, and half as much damage on a successful one. After you use your breath weapon, you can’t use it again until you complete a short or long rest.