Primal Avatar Ascension

Primal Avatar Ascension

9th-level transmutation
Casting Time: 1 action
Range: Self
Components: V, S, M (a relic from a sacred grove or ancient animal totem)
Duration: Concentration, up to 10 minutes

Primal Avatar Ascension allows you to channel the raw, untamed forces of nature, transforming into a formidable avatar of primal energy.

Avatar Transformation: Upon casting, you transform into a colossal avatar, embodying the elements of nature. Choose one element (earth, air, fire, water) to dominate your form. Your size becomes Huge, and you gain the following benefits based on the chosen element:

Earth: Your AC increases by 3, and you gain resistance to physical damage.
Air: You gain a flying speed of 80 feet and immunity to lightning and thunder damage.
Fire: You deal an additional 2d10 fire damage with melee attacks, and you are immune to fire damage.
Water: You can move through water without impediment, breathe underwater, and cast 'Control Water' at will without expending a spell slot.
Elemental Fury: As an action, you can unleash a devastating elemental attack in a 60-foot cone. Creatures in the area must make a Dexterity saving throw, taking 10d10 damage on a failed save, or half on a successful one, based on your chosen element.

Nature's Boon: Allies within 30 feet of you gain a boon from your elemental presence:

Earth: They gain temporary hit points equal to your spellcaster level +20.
Air: They gain advantage on saving throws against being knocked prone.
Fire: Their weapons deal an extra 1d6 fire damage.
Water: They gain resistance to fire damage.
Primal Instinct: While transformed, you must make a Wisdom saving throw at the start of each of your turns. On a failed save, you spend the turn acting according to primal instincts, potentially attacking the nearest creature or moving toward natural elements aligned with your form.

Return to Form: When the spell ends, you return to your normal form and are exhausted, gaining one level of exhaustion.

Subclasses: Circle of the Moon Druid, Elemental Sorcerer
Optional/Variant Classes: Wizard, Cleric (Nature Domain)
Source: Custom creation.