Actions

Multiattack The dragon can use its Frightful Presence. It then makes three attacks: one with its Bite and two with its Claws.
Bite Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 2d10+5 piercing damage plus 1d10 lightning damage.
Claw Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 2d6+5 slashing damage.
Lightning Breath (Recharge 5-6) The dragon exhales lightning in a 60-foot line that is 5 ft. wide. Each creature in that area must make a DC 16 Dexterity Saving Throw, taking 10d10 lightning damage on a failed save, or half as much on a successful one.