Orium Dragon Wyrmling (5e Creature)

ACTIONS

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) piercing damage.

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

Acid Breath. The dragon exhales acidic gas in a 15-foot cone. Each creature in that area must make a DC 13 Constitution saving throw, taking 13 (3d8) acid damage on a failed save, or half as much damage on a successful one.
Immediately after the attack, a Medium vaporous serpent appears in an unoccupied square affected by the breath weapon, or in the nearest unoccupied space if all spaces affected are otherwise occupied. It acts immediately after the dragon in initiative order, has a movement speed of 20 feet, and is killed by any amount of damage. All of its ability scores are 10 and it has an AC of 10. On its turn, the serpent can only make the Attack action to make the following attack:
Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 4 (1d8) acid damage.
The dragon's Breath Weapons action recharges only when the serpent is killed.
Detavilizing Breath. The dragon exhales gas in a 15-foot cone. Each creature in that area must succeed on a DC 13 Constitution saving throw or have disadvantage on Constitution checks and saving throws for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.