Boy Band Hag Leader

Harmonizing: If two Boy Band Hags use their Perfect Pitch feature within 60ft of each other all creatures who can hear it have disadvantage on their saving throw (including the additional saving throw of Wrong Note).

Fly By: The Boy Band Leader does not provoke attacks of opportunity if it moves out of a creature's reach in its turn, provided it didn't use any of its actions other than Talons on its turn. It can use its actions normally after moving.

Magic Detection: The Boy Band Leader knows the location of any magical effects within 60 feet of it.

Multi-attack. The Hag makes two attacks: either two Hooked Talons or one Poisoned Dagger and one Talon.

Hooked Talons: Melee Weapon Attack +6 to hit, 5ft reach, one target, for 1d6+3 slashing damage a medium or smaller creature hit by this attack must succeed in a DC 15 Strength saving throw being grappled and restrained by the Elder Harpy Hag on a failure (the Elder Harpy Hag can fly normaly while grappling a medium or smaller creature).

Spellcasting: The Leader Hag is capable to cast spells as follows.

Boy Band Hag Leader spells have a +8 bonus to spell attack rolls and a 16 spell save DC.

Cantrips (at will) (as an 5th level character): Vicious Mockery, True Strike, Thunder Clap.

Level 1 Spells (4 spell slots): Charm Person, Thunderwave, Dissonant Whispers, and Faerie Fire.

Level 2 Spells (3 spell slot): Invisibility, Deafness, Enthrall.

Level 3 Spells (2 spell slot): Dispel Magic, Bestow Curse

Perfect Pitch: The Boy Band Hag sings a magical melody. Every humanoid, giant and beast within 300 feet of the Boy who can hear the song must succeed on a DC 16 Wisdom saving throw suffering one of the following effects (random). Members of the band are immune to the effects.

The Boy Hag must keep singing at its following action for the effect to take place otherwise the effect of the song ends.

Paralyzing Song: Creatures become so enamored with the performance that they can not moved and are paralyzed for until the end of their next turn.

Lethargic Chorus: Creatures are bored with the band. Their speed is reduced by half and it can only take one action or one bonus action on its turn.

Wrong Note: The notes are off and disturbing. A creature his with the wrong note takes 2d8 psychic damage.  

Going Viral: The Boy Band Leader's Song has a secondary effect. As long as he continuously sings in Perfect Pitch, an extra dimensional portal opens after five rounds. As it is Perfect Pitch, an action is used to start the Perfect Pitch and a bonus action must be used to maintain the effect. If the Leader is killed the effect switches to another band member as long as that band member is also a Boy Band Hag.

Fast Wings: As a reaction towards taking damage the Boy Band can move up to half of its flying speed without provoking attacks of opportunity.

The Boy Band Leader can take two 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 Boy Band Leader regains spent legendary actions at the end of its turn.

Celebrate Victory (Costs 2 Actions). The monster celebrates its inevitable victory with its allies, two allies of its choice that can hear it and are within 60 feet, can use their reaction to either make a melee weapon attack or gain 5 temporary hit points.

Bye Bye Bye (Costs 1 Action). The monster can use Misty Step.

Pyrotechnics. (Cost 2 Actions). The monster can choose a five foot square within 30 ft and a sparking fire burst from the ground. Dex DC 16. 2d8 fire damage. Half if saved.