Legendary Resistance (3/Day) If the dragon fails a saving throw, it can choose to succeed instead.

 Alternate Form. Song dragons can freely assume human form. Each song dragon has a unique human form that it assumes each time it changes shape. The song dragon's Strength, Dexterity, and Constitution scores become human average (Str 10, Dex 11, Con 10), but its hit points are unaffected by this change. A song dragon can employ its spells and special abilities - except its breath weapon - in either form. Changing from one form to another is an action.

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite or tail and two with its claws.

Bite. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage.

Claws. Melee Weapon Attack: +9 to hit, reach 10 ft., one creature. Hit: 12 (2d6 + 5) slashing damage.

Tail. Melee Weapon Attack: +9 to hit, reach 15 ft.., one creature. Hit: 14 (2d8 + 5) bludgeoning damage.

Frightful Presence. Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 17 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours.

 Static Gas (Recharge 5–6). The dragon exhales a cloud of electrically charged gas in a 40-foot cone. Each creature in that area must make a DC 19 Dexterity saving throw, taking 42 (12d6) lightning damage on a failed save, or half as much damage on a successful one. The gas lingers and affects the area as the Antimagic Field and silence spells, except it has a duration of 1 minute.

The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

 Tail Attack. The dragon makes a tail attack.

 Shift (Costs 2 Actions). The dragon shifts between its human and dragon forms.