Chaotic

Legendary Resistance (2/Day). If the Chaotic fails a saving throw, it can choose to succeed instead.

Chaotic Weapons. The Chaotic's weapon attacks are magical. When the Chaotic hits with any weapon, the weapon deals an extra 6d8 radiant damage (included in the attack).

Magical Resistance. The Chaotic is resistant to damage from spells.

Paranormal Awareness. The Chaotic is alerted whenever a telepathic conversation is happening within 50 feet of it (EX: Spells like Message or Telepathic Bond). It does not know who is talking, but knows what is being said.

Chaotic Rebirth. Once the Chaotic dies in any manner, it is brought back to life within 30 feet of where it died after 5 full days have passed with full health and cured of any conditions it had on it when it died. Only a Wish spell can stop this from happening permanently.

Chaotic Wrath. Once when the Chaotic has lost half or more of its health, it can activate a double Action Surge, granting it three turns in total.

Spellcasting. The Chaotic is a 20th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 20, +15 to hit with spell attacks). The Chaotic has following sorcerer spells prepared:

Cantrips (at will): fire bolt, poison spray, ray of frost, shocking grasp

1st level (5 slots): absorb elements, burning hands, magic missile, sleep

2nd level (4 slots): aganazzar's scorcher, enlarge/reduce,  suggestion

3rd level (4 slots): counterspell, dispel magic, lightning bolt, melf's minute meteors

 4th level (3 slots): blight, dimension door, greater invisibility, polymorph

5th level (3 slots): control winds, dominate person, telekinesis

6th level (2 slots): chain lightning, disintegrate, sunbeam

7th level (2 slots): finger of death, prismatic spray

8th level (1 slot): dominate monster, power word stun

9th level (1 slot): power word kill, time stop

Claw. Melee Weapon Attack: +17 to hit, reach 10 ft., one target. Hit: 65 (10d10 + 10) slashing damage.

Scimitar. Melee Weapon Attack: +15 to hit, reach 5 ft., one target. Hit: 78 (20d6 + 8) slashing damage.

Blast of Power (Recharge 3 turns). The Chaotic unleashes a blast of light from its eye. Any creature that can currently see the Chaotic's eye must make a DC 22 Dexterity saving throw to look away. If they fail, they become Blinded and take 91 (26d6) psychic damage on a failed save, or half as much damage on a successful one.

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

Claw Attack. The Chaotic makes a claw attack.

Morph (Costs 1 Action). The Chaotic changes its body in one of the following ways:

• Birdlike: The Chaotic sprouts wings and gains a flying speed equal to its walking speed.
• Fishlike: The Chaotic gains gills and fins, can breathe underwater, and has a swimming speed equal to its walking speed.
• Buglike: The Chaotic becomes Tiny in size, but keeps all of its stats. It also gains the effects of the racial traits Naturally Stealthy and Halfling Nimbleness.

These effects only last until the Chaotic's next turn is finished.

Mind Buster Beam (Costs 2 Actions). The Chaotic fires a laser from its eye. The laser follows exactly where the eye is pointing, and any creature it looks at must make a DC 25 Dexterity saving throw or take 91 (26d6) psychic damage on a failed save, or half as much damage on a successful one.

Eldritch Foresight (Costs 3 Actions). The Chaotic peers into the near future to prepare for the next time it is attacked. The next time an opponent of the Chaotic makes an attack roll against it, the attack has disadvantage and the Chaotic has Resistance to the type of damage. The disadvantage for attacks against the Chaotic and its resistance to that damage type lasts until the turn of the attacker ends (turn also including things like action surges and bonus actions).