Multiattack

The dragon makes one Bite attack and two Claw attacks.

Bite

_Melee Weapon Attack:_ +9 to hit, reach 10 ft., one target. _Hit:_ 16 (2d10+5) piercing damage plus 5 (1d10) lightning damage.

Claw

_Melee Weapon Attack:_ +9 to hit, reach 5 ft., one target. _Hit:_ 12 (2d6+5) slashing damage.

Lightning Breath (Recharge 5-6)

The dragon exhales lightning in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 16 DEX save, taking 55 (10d10) lightning damage on a failed save, or half as much damage on a successful one.