Azoth

Spellcasting. Azoth casts one of the following spells, using Charisma as the spellcasting ability without needing material components. (spell save DC 27):

At will: Control Flames, Control Weather, Gust, Mold Earth, Plane Shift, Shape Water, Shield

2/day each: Prismatic Spray, Bones of the Earth, Freezing Sphere, Fire Storm, Wind Walk

1/day each: Meteor Swarm, Tsunami, Earthquake, Whirlwind, Prismatic Wall.

Special Equipment. Azoth carries a ring of teleportation, cloak of many fashions, a periapt of proof against poison, potion of resistance, and three supreme healing potions.

Unusual Nature. Azoth doesn’t require sleep, air, food, or drink.

Fear Aura. Each creature of the Azoth's choice that starts its turn within 20 feet of Azoth must make a DC 27 Wisdom saving throw. On a failed save, the creature is frightened.The frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. On a successful save, the creature is immune to this Azoth's Fear Aura for the next 24 hours.

Legendary Resistance (6/Day). If Azoth fails a saving throw, they can choose to succeed instead.

Magic Weapons. Azoth's attacks are considered magical for the purpose of overcoming resistance or immunity to non-magical attacks.

Boon of Magic Resistance. Azoth has advantage on saving throws against spells and other magical effects. 

Boon of Immortality. Azoth is an immortal and cannot be aged no matter what. 

Boon of Irresistible Offense. Azoth bypasses the damage resistance of any creature.

Multiattack. Azoth can use their Elemental Explosion if they have it available. They then makes five attacks. 

Primordial Blade (+4). Melee Weapon Attack: +23 to hit, reach 10 ft., one target. Hit: 32 (3d12 + 13) slashing damage plus 26 (5d10) bludgeoning, cold, fire, or thunder damage 

Primeval Bolt. Ranged Spell Attack: +19 to hit, range 120 ft., one target. Hit: 41 (5d12 + 10) bludgeoning, cold, fire, or thunder damage. It then needs to make a DC 27 Strength saving throw or be pushed 10ft away or pulled 10ft closer from Azoth. 

Elemental Explosion (Recharge 5-6). Azoth forces each creature within 150ft to make a DC 27 Dexterity saving throw. Each creature that fails, takes 20 points of bludgeoning, cold, fire, and thunder damage and be knocked prone. On a successful saving throw, they take only half of each and are not knocked prone.

Fey Step. The eladrin teleports, along with any equipment it is wearing or carrying, up to 30 feet to an unoccupied space it can see.

Boon of Recovery. Azoth can as a bonus action regains half of their Hit point maximum .

Spell Reflection. If Azoth makes a successful saving throw against a spell or a spell attack misses them, Azoth can choose another creature (including the spellcaster) they can see within 120 feet of it. The spell targets the chosen creature instead of Azoth. If the spell forced a saving throw, the chosen creature makes its own save. If the spell was an attack, the attack roll is rerolled against the chosen creature.

Azoth can take 5 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. Azoth regains spent legendary actions at the start of their turn.

Suffocate (Costs 4 Actions). Azoth steals the air of one breathing creature they can see within 60 feet of themself. The target must make a DC 27 Constitution saving throw. On a failed save, the target drops to 0 hit points and is dying. On a successful save, the target can’t breathe or speak until the end of its next turn.

Whelm (Costs 3 Actions). Azoth exudes a wave of freezing water from themselves outwards. Each creature within 60ft of Azoth must make a Strength saving throw DC 27 or take 42 (8d10) cold damage, taking half damage on a successful save. If the target fails by 5 or more, then they become Paralyzed until the end of their next turn.

Earthen Tomb (Costs 2 Actions). Azoth calls upon their elemental power within their blood. Each creature they choose within 60ft takes makes a Dexterity saving throw DC 27. On a failed saving throw, a creature gets swallowed up by the earth and become Restrained. A creature repeats this save as an action with a Strength check on it's turn.

Combustion (Costs 2 Actions). Azoth causes one creature they can see within 30 feet of them to burst into flames. The target must make a DC 27 Constitution saving throw. On a failed save, the target takes 70 (14d10) fire damage and catches fire. A target on fire takes 10 (2d10) fire damage when it starts its turn, and remains on fire until it or another creature takes an action to douse the flames. On a successful save, the target takes half as much damage and doesn’t catch fire.

Strike (Costs 1 Action). Makes an attack with either the Primordial Blade, Primeval bolt, or casts a spell.