Multiattack

The dragon makes one Bite attack and two Claw attacks. It can replace its Bite attack with a use of Repulsion Breath, if available.

Bite

_Melee Weapon Attack:_ +8 to hit, reach 10 ft., one target. _Hit:_ 16 (2d10+5) piercing damage.

Claw

_Melee Weapon Attack:_ +8 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 15 DEX save, taking 49 (9d10) lightning damage on a failed save, or half as much damage on a successful one.

Repulsion Breath (Recharge 6)

The dragon exhales repulsion energy in a 30-foot cone. Each creature in that area must succeed on a DC 15 STR save or be pushed up to 15 feet away from the dragon.