Your patron is one of the water spirits of Westdeep, and they have granted you the powers of the oceans rage.

Expanded Spell List

The Leviathan lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Fiend Expanded Spells

Spell Level	Spells
1st	burning hands, command
2nd	Acid Arrow, scorching ray, darkness, darkvision, enlarge/reduce
3rd	Conjure Animals, Daylight, Water Breathing
4th	Black Tentacles, Dimension door
5th	Maelstrom, hallow, [Tooltip Not Found]

Soul Scaring

Starting at 1st level, when you reduce a hostile creature to 0 hit points, you gain temporary hit points equal to your Charisma modifier + your warlock level (minimum of 1).

True Leviathan

You Gain size huge (up to 25 feet tall), and a swimming speed of +30.

Sea of danger

You gain 1d20 eldritch blast damage.

Unbroken Leviathan

You gain +40 swimming speed, size gargantuan (up to 55 feet tall), a Venomous bite attack, and immunity to cold damage.