Miracle of Creation (Mythic trait; recharges on a short or long rest). When Aureli reaches 0 or less hit points, this trait kicks in. She gains the effects of a long rest immediately, and doesn't die. She takes an action immediately, gains a +2 to AC
Legendary Resistance (5/day). If Aureli fails a saving throw, she can choose to succeed it instead.
Limited Magic Immunity. Unless she wishes to be effected, Aureli is immune to spells of 6th level or lower. She also has advantage on saving throws against all other spells and magical effects
Regeneration. Aureli regains 40 hit points at the start of her turn.
Spellcasting. Aureli is a spellcaster. Her spellcasting ability is Charisma (spell save DC 27, +17 to hit with spell attacks). Aureli has the following spells prepared:
Cantrips (at will): Chill Touch, Fire Bolt, Mage Hand, Prestidigitation
1st level (5 slots): Chromatic Orb, Sleep, Hellish Rebuke
2nd level (5 slots): Blindness/Deafness, Detect Thoughts, Phantasmal Force
3rd level (5 slots): Fireball, Counterspell (takes a 3rd level slot while upscaling), Dispel Magic (takes a 3rd level slot while upscaling)
4th level (5 slots): Wall of Fire, Polymorph, Greater Invisibility
5th level (5 slots): Cone of Cold, Creation, Telekinesis
6th level (4 slots): Chain Lightning, Eyebite, Disintegrate, Circle of Death, Shield Ω, Magic Shield Ω
7th level (4 slots), Plane Shift, Teleport, Fire Storm, Finger of Death, Prismatic Spray
8th level (3 slots): Earthquake, Feeblemind, Sunburst
9th level (7 slots): Power Word Kill, Meteor Swarm, Gate, Time Stop, Prismatic Wall, Shield Σ, Magic Shield Σ, Wish
10th level (3 slots): Summon, Time Duplicate,
11th level (1 slot): Avatar
Multiattack. Aureli can cast 3 spells from her spellcasting trait or cast 1 legendary spell and 1 regular spell
Legendary Spell: Forblaze Range 150ft., 20ft diameter by 75ft high cylinder. Each creature in the area must make a DEX saving throw (DC 27, 30 if Apocalypse has been
used the turn before) or take 11d10 fire damage and take half that damage at the start of it's next turn for the next 2 turns on a failed save, 75% of the main damage and no other effects on a successful save. The spell treats any damage immunities as resistances and ignores resistances, for the purpose of damage. This spell deals 1.5x damage to dragons. This spell ignites flammable objects that aren't being worn or carried, if they are in the spell's area.
Legendary Spell: Apocalypse.
A void of dark electric energy appears in a up to 30ft sphere. Each creature in this area must make a CON save (DC 27, 30 if Apocalypse has been used the turn before) On a fail, the creature takes 7d10 necrotic damage and suffers the effect of either Feeblemind or Eyebite (pick any option if this gets chosen), 50% chance for either. On a success the creature takes 7d10 necrotic damage and suffers no additional effect. This spell ignores resistances and treats immunities as resistances. This spell deals 1.5x damage to dragons
Legendary Spell: Aureola.
A concentrated bolt of pure radiance and light beams down from a magic sun in the sky, 20ft above you. This sun does not emit heat, radiation or
light as strong as an actual sun, about as strong as a torch. The bolt can be split to hit up to 3 targets. Each target must make a CHA save (DC 27, 30 if Apocalypse has been
used the turn before) On a fail, the creature takes 9d10 radiant damage and is blinded for 1 minute. On a success the creature takes 75% of the damage and isn't blinded. This spell ignores resistances and treats immunities as resistances. This spell deals 1.5x damage to dragons.
Aureli can take 3 reactions per round.
Counter (3/day). Aureli deflects all damage dealt to her, and heals the amount of damage that is countered.
Shield. Aureli casts either Shield Ω (costs 2 reactions), Shield Σ (costs 2 reactions), Magic Shield Ω (costs 2 reactions) or Magic Shield Σ (costs reactions)on herself and her allies
Aureli has 3 legendary actions, taken between other creature's turns.
Cast a Spell. Aureli casts a spell of 8th level or lower from her spellcasting trait.
Legendary Spell (Costs 2 actions). Aureli casts one of the legendary spells.
If Aureli's mystic trait is active, she can use these as legendary actions for 6 hours after using Miracle of Creation.
Unbound. Aureli teleports up to 120ft to an empty space she can see in range.
Void of Creation (Costs 3 actions). Every creature Aureli chooses must make a saving throw, using their lowest stat (DC 23). On a failed save, the creature takes 4d10 necrotic damage and a Stone Golem appears before each creature. Only they can see the golem assigned to them, and the golem can only interact with the world around it and it's assigned target. On a successful save, the creature only takes 4d10 necrotic damage. A creature who succeeds this saving throw automatically succeeds it's next save against this spell.
Light of Destruction (Costs 3 actions). Every creature in a 500ft range from Aureli must make a saving throw using their strongest stat (DC 23). On a failed save all creatures take 14d10+70 radiant damage, and are blinded (50% chance), paralyzed (37.5% chance) or petrified (12.5% chance) for a minute, and are incapacitated until their next turn. On a success, they take half damage and are incapacitated until their next turn.