Charism of the Leviathan

The ancient deity Cotyx: The Leviathan, along with their 75 siblings, abandoned their Omni rule to allow their power to be obtained by mortals. In the time known only as "Apotheosis", these 76 deities were the only Sentient beings in existence. As they began to expand and reproduce their children rose to power and began to create what you know now as the planets, planes, worlds, and dimensions. Along with this, they gave life to all manner of lifeforms: animals, beasts, humanoids, demons, devils, angels, etc. to serve them. The original deities, The Zeniths, abandoned their divinity and hid this power away until that power was needed once more. This power begins with a Vestment; a trial period to see if their minds, bodies, and souls can handle the ascension. If they have not perished from this power or deviated from their divine path, the process of "Apotheosis" can begin. You have been given the title of "The Leviathan" and your "Apotheosis" begins.

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 You instantly receive a +1 to your Dexterity and Strength score. (Add Manually)

You are now resistant to Bludgeoning, Piercing, and Slashing from Nonmagical Attacks.

You know how to speak and write Celestial.

You may now, as an Action, cast Enlarge Reduce on yourself at will. (You may not go from small to large - you must use an action between sizes) Your speed doubles when enlarged and halved when reduced.

You now may add 2D6 damage for all weapon attacks at normal size, scaling as needed. (1D6 when small, 2D6 when average, 4D6 when Huge).

 You are now Immuned to being Frightened.

You have access to the Leviathan's Roar: (Recharged during long rest)

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Leviathan's Roars

Battle Cry: As an Action, you may Roar as a Battle Cry empowering your allies and yourself. Up to eight creatures, including you, in 120ft of you have Advantage on their next attack rolls until the start of your next turn.

Fearsome Roar: As an Action, you can force an enemy within range (120ft) to make a Wisdom Saving Throw using your Spell Save DC. On a failure, the creature is frightened by you for one minute. They may repeat the saving throw at the end of each of their turns. Creatures immune to fear are unaffected. 

Bolstered Roar: As an Action, you can Roar and up to 8 allies in range (120ft) may add +2 to their AC until the start of your next turn. (Does not work on yourself).