Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) piercing cdamage plus 3 (1d6) lightning damage.
Abyssal Breath (Recharge 5–6). The dragon exhales a stream of necrotic energy in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 12 Dexterity saving throw, taking 22 (4d10) Necrotic damage on a failed save, or half as much damage on a successful one.
Draconic Bane (Recharge 19-20). One creature of your choice that you can see within range must make a DC17 Charisma saving throw. Whenever a target that fails this saving throw makes an attack roll or a saving throw before the spell ends, the target must roll a d4 and subtract the number rolled from the attack roll or saving throw.
Draconic visions. Once per long rest when a creature fails its save, as a reaction roll a D20 and substitute the new roll for any saving throw.