Copper Dragon Wyrmling

Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 1d10+2 slashing damage.

The dragon exhales acid in a 20-foot-long, 5-foot-wide line. Each creature in that line must make a DC 11 Dexterity saving throw, taking 4d8 acid damage on a failed save, or half as much damage on a successful one.

The dragon exhales gas in a 15-foot cone. Each creature in that area must succeed on a DC 11 Constitution saving throw or be affected for 1 minute. While affected, a creature can't take reactions; its speed is halved; and it can take either an action or a bonus action on its turn, not both. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.