Ashla, The First Nova

Magic Resistance. Ashla has advantage on saving throws against spells and other magical effects.

Starborn Radiance. Ashla exudes celestial brilliance in a 120-foot radius around her. Any hostile creature that enters or starts its turn in this area must make a DC 25 Constitution saving throw, taking 10 (4d10) radiant damage on a failed save or half as much on a success. In addition, creatures that fail the saving throw are blinded for 1 minute (creatures can repeat the saving throw at the end of each of its turns).

Nova Rebirth (1/day). If Ashla would drop to 0 hit points, she erupts in a supernova of creation, dealing 300 radiant damage to all creatures in a 200-foot radius (DC 27 Dexterity saving throw, halved on a success). After the explosion, she instantly reforms at 650 points at a chosen point up to 400 feet away. Additionally, Ashla can now use the options in the “Mythic Actions” section for 1 hour. Award a party an additional 155,000 XP (310,000 XP total) for defeating Ashla after her Nova Rebirth activates.

Innate Spellcasting. Ashla's innate spellcasting ability is Charisma (spell save DC 28, +19 to hit with spell attacks). Ashla can cast the following spells, requiring no material components:

At will: bless, greater restoration, detect evil and good, daylight;

3/day each: time stop, wish, divine word, foresight,

1/day each: power word heal, meteor swarm (it deals radiant instead of fire damage)

Multiattack. Ashla makes three attacks: one with her Solar Blade, one with her Stellar Arrow, and one cast of Judgment of Light.

Solar Blade. Melee Weapon Attack: +22 to hit, reach 10 ft., one target. Hit: 45 (8d6 + 17) radiant damage. If the target is a fiend or undead, it takes an additional 40 radiant damage.

Stellar Arrow. Ranged Weapon Attack: +22 to hit, range 150/600 ft., one target. Hit: 55 (10d6 + 17) radiant damage and blinds the target on a failed DC 25 Constitution saving throw until the end of their next turn.

Judgment of Light. Ashla sends out a wave of judgement in a 60-foot cone. Each creature in that area must make a DC 27 Wisdom saving throw or take 75 (15d10) radiant damage and be stunned until the end of their next turn. If the creature succeeds, it takes half damage and is not stunned.

Ascendant Strike (Recharge 5-6). Ashla calls down radiant lightning from the heavens to strike an area. Creatures within a 30-foot radius must make a DC 27 Dexterity saving throw or take 90 (15d12) radiant damage and 90 (15d12) thunder damage, or half as much damage on a successful save.

Legendary Sculptor. Ashla channels her divine creation powers to weave the very fabric of the universe. As a bonus action, she can create or reform matter, forming an object or structure up to 30 cubic feet made of any material she chooses. This creation lasts indefinitely unless destroyed.

Cosmic Shield. Ashla can create a shield of stardust around her. As a reaction to being targeted by an attack or spell, Ashla reduces the damage by 20 points or negates the spell entirely if it is of 7th level or lower.

Ashla has 6 legendary actions. Only one legendary action can be used at a time and only at the end of another creature's turn. Ashla regains her spent legendary action at the start of her turn.

Move. Ashla moves up to her speed without provoking opportunity attacks.

Pillar of Creation (Costs 3 Actions). Ashla summons a pillar of radiant energy to erupt from the ground in a location within 100 feet. Any creature within a 20-foot radius of the pillar must make a DC 27 Dexterity saving throw or take 60 (10d10) radiant damage and become restrained by celestial light.

Nova Command (Costs 3 Actions). Ashla commands divine energy to heal herself or an ally within 60 feet. The target regains 150 hit points or is freed from any condition affecting them.

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If Ashla’s Nova Rebirth trait has activated in the last hour, she can use the options below as legendary actions.

Divine Will (Reaction). Ashla can force a reroll on any saving throw or attack roll made within 120 feet of her.

Celestial Judgment (Costs 3 Actions). Ashla targets a creature she can see within 120 feet of her. The target must succeed on a DC 28 Charisma saving throw or take 45 (10d8) radiant damage. If the target is a fiend or undead, it is banished to a celestial prison for 1 hour.