Apocalypse Bird

Innate Spellcasting.  The Apocalypse Bird's spellcasting ability is Wisdom (spell save DC 24) The Apocalypse Bird can innately cast the following spells, requiring no material components.

At will: Fear, Mass Suggestion

All-Seeing. The Apocalypse Bird is able to see through all obstacles up to 120 feet of range.

Blackout. All forms of nonmagical light in a 60 foot radius centered on The Apocalypse Bird no longer work. 20 feet of twilight radiates from the Apocalypse Bird that can be seen by creatures outside of the space.  

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

Legendary Resistance (3/day).  If The Apocalypse Bird fails a saving throw, they can choose to succeed instead.

Magic Resistance. The Apocalypse Bird has advantage on saving throws on spells and other magical effects 

Magic Weapons. The Apocalypse Bird's weapon attacks are magical.

Multiattack. The Apocalypse Bird attacks twice with Tilted Scales.

Peace for all. Ranged Weapon Attack: 30 foot radius circle on the ground centered on The Apocalypse Bird. Creatures within range must succeed on a DC (24) Dexterity saving throw or take 27 (4d8 + 9) Bludgeoning and be knocked prone. On success take half as much damage and no other effects applied.

Brilliant Eyes. Ranged Spell Attack: The Apocalypse Bird fires a barrage of lasers from it's eyes, targeting up to 5 creatures that it can see. All creatures targeted by The Apocalypse bird must make a DC (24) Dexterity saving throw or take 16 (3d10) radiant damage and can no longer take a reaction until the start of their next turn. On success take half as much damage and no other effects applied.

Comeuppance. Melee Weapon Attack: +17 to hit, reach 15 ft., one target. Hit: 61 (8d12 + 9) piercing damage. 

Tilted Scale. Melee Weapon Attack: +17 to hit, reach 20 ft., one target. Hit:  22 (2d12 + 9) Bludgeoning damage. On hit inflict Heavy Guilt (-1 to Constitution saving throws, and checks to maintain concentration on spells per stack of Heavy Guilt. When stack count reaches 5 or greater, purge all stacks of Heavy Guilt and deal 33 (6d10) psychic damage.)

Teleport. The Apocalypse Bird magically teleports, along with any equipment they're wearing or carrying, up to 120 feet to an unoccupied space they can see.

The Apocalypse Bird 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 Apocalypse Bird regains spent legendary actions at the start of their turn.

Teleport. The Apocalypse Bird uses their Teleport action.

Twilight; Small Beak. The Apocalypse bird chooses up to two targets that it can see and forces them to make a Charisma saving throw against it's spell save DC (24), on fail targets can no longer cast spells until the start of their next turn. On success nothing happens.

Twilight; Big Eyes. The damage that The Apocalypse bird deals is no longer affected by outside sources until the start if their next turn.

Twilight; Long Arms. The Apocalypse Bird can no longer be affected by status ailments until the start of their next turn.

Surveillance (Costs 2 Actions). The Apocalypse Bird targets all creatures that are afraid of the Apocalypse Bird. Targeted creatures must succeed on a DC (24) Charisma check or take 33 (6d10) psychic damage. Creatures hit by this move are no longer frightened.

Torn Mouth (Costs 2 Actions). The Apocalypse Bird makes a makes a Melee Weapon Attack +17 to hit reach 15 feet., one target. Hit: 30 (6d6 + 9) Piercing damage and must succeed on a DC (24) Wisdom saving throw or be frightened. A creature can repeat the saving throw at the end of each of it's turns, ending the effect on itself on a success. If a creatures saving throw is successful or the effect ends for it, the creature is immune to this effect for the next 24 hours.

Adjudication (Costs 3 Actions). The Apocalypse Bird summons a large gold scale above their head that has one side much larger than the other. The scale then tilts to the larger side and all creatures within a 60 foot radius sphere centered on The Apocalypse Bird must succeed on a DC (24) Constitution saving throw or take (10 * #Heavy Guilt) force damage.