Cavagata, Of The Unending Storm

Cold Lightning: If Cavagata deals only cold or lightning/thunder damage then 1/4 of that damage is instead the other (ie: 20 cold damage is turned into 15 cold damage and 5 lightning/thunder damage, vice-versa), additionally the replaced damage ignores immunities and resistances.

The Unending Storm: Wherever Cavagata, Of The Unending Storm goes a 100ft radius storm centered on her follows and deals 1d4 Lightning/Thunder/Cold damage for every 10ft closer to the center of the storm to each creature at the beginning of each of their turns, the storm is also difficult terrain for any creature that moves through it and casts dim light though out its entire area. Additionally Cavagata is immune to all harmful effects of spells and spell like abilities that deal Lightning, Thunder, and/or Cold damage and is additionally immune to instant death effects.

• Spellcasting. Cavagata, Of The Unending Storm is a 20-level spellcaster. Its spellcasting ability is CHA (spell save DC 30, +22 to hit with spell attacks). Cavagata has is a Warlock with these spells prepared:
• Cantrips (at will): Eldritch Blast, Lightning Lure, Booming Blade, Frostbite
• 1st level (at will): Expeditious Retreat(5th lv), Thunderwave(5th lv), Witch Bolt(5th lv)
• 2nd level (at will): Icingdeath's Frost(5th lv), Invisibility(5th lv), Misty Step(5th lv)
• 3rd/4th/5th levels (5 slots): Call Lightning(5th lv), Counterspell(5th lv),Thunder Step(5th lv), Elemental Bane(5th lv), Ice Storm(5th lv), Storm Sphere(5th lv), Banishment(5th lv), Maelstrom, Cone of Cold
• 6th level (1/long rest): Investiture of Ice
• 7th level (1/long rest): Crown Of Storms (deals lighting damage instead of radiant)
• 8th level (1/long rest): Chilling Tsunami (deals cold/bludgeoning damage)
• 9th level (1/long rest): Storm of Vengeance

Legendary Spellcasting: Any spell 3rd level or lower that uses an action instead uses a bonus action and any spell that uses a bonus action can instead be used as a reaction (this includes any abilities spells give), additionally Cavagata has 2 extra bonus actions and 2 extra reactions per round for a total of 3 bonus actions and 3 reactions and has no limit to the amount of spells she can cast each round.

Legendary Concentration: Cavagata can have up to two concentration spells active at the same time and can still cast instantaneous spells while in concentration with one or more spells.

Legendary Resistance (3/Day): If Cavagata fails a saving throw, she can choose to succeed instead.

Ship Breaker/Giant’s Bane: Any constructs and creatures that are bigger than large take double damage from Cavagata's Chilling Grasp.

Multiattack: Cavagata can use her Frightful Presence. She then makes two attacks: one with her Restraining Bite and another with her Paralyzing Claws.

Paralyzing Claws: Melee Weapon Attack: +11 to hit, reach 30 ft., 1 target. Hit: 30 (4d10 + 10) lightning/slashing damage. On hit the target must succeed a DC 30 CON save or be Paralyzed until their next turn.

Restraining Bite: Melee Weapon Attack: Cavagata snaps her jaws in a 20ft cone in front of her. Each creature within that cone must make a DC 30 CON and DEX save (they make and apply the effects of the CON save first), on a failed DEX save they take 60 (4d10 + 40) cold/piercing damage and on a failed CON save they are Restrained until their next turn.

Chilling Grasp: Melee Weapon Attack: Cavagata makes a circle with her body around an area and squeezes any creature/construct in a cylinder that's 20ft high and has a radius of 20ft, any creature within this cylinder must make a DC 30 DEX save, on a failed save each creature takes 15 (2d10 +5) cold/lightning/bludgeoning damage and be Grappled, Paralyzed and Restrained for 1d10+2 rounds. Additionally any creatures/constructs that are grappled by Cavagata take Xd10 +5 cold/lightning/bludgeoning damage at the beginning of their turn, where X is the amount of rounds they have been grappled in a row. (This action can only be used 1d6-1 turns after Cavagata lets go of all creatures/constructs effected by this ability)

Frightful Presence: Each creature of Cavagata choice that is within 120 feet of her and aware of her must succeed on a DC 30 CHA saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to Cavagata’s Frightful Presence for the next 24 hours.

Breath Of The Unending Storm: Cavagata breaths cold plasma in a 90ft cone  Each creature in that cone must make a DC 30 CON and DEX save (they make and apply the effects of the CON save first), taking 60 (12d10) cold/lightning damage on a failed DEX save, or half as much damage on a successful one, and gaining the Paralyzed and Restrained conditions for 1d4 turns on a failed CON save. (This action can only be used 1d6-1 turns after it is used)

Strengthen Grasp: As a reaction Cavagata can add an additional round to the effects of Chilling Grasp (This action can only be used if their are any any constructs and/or creatures that are bigger than large caught in Chilling Grasp)

Cavagata can take 4 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and can be used at any time that is not on Cavagata's turn. Cavagata regains spent legendary actions at the start of her turn.

The Symphony Of The Unending Storm (Costs 1 Action): The area in the radius of 200ft becomes Cavagata's lair for 1d10 mins. (This action can only be used once every short rest)

Breath Of The Unending Storm (Costs 2 Actions): Cavagata breaths cold plasma in a 90ft cone  Each creature in that cone must make a DC 30 CON and DEX save (they make and apply the effects of the CON save first), taking 60 (12d10) cold/lightning damage on a failed DEX save, or half as much damage on a successful one, and gaining the Paralyzed and Restrained conditions for (1d4)/2 turns rounded up on a failed CON save. (This action can only be used 1d4-1 turns after it is used)

Shocking Burst (Costs 2 Actions): Cavagata beats her fins. Each creature within 15 feet of her must succeed on a DC 30 Dexterity saving throw or take 20 (2d10+10) lightning/thunder damage and be knocked prone. She can then move up to half her swimming speed.

Legendary Spell-Slinging (Costs 2 Actions): Cavagata can cast one spell of 4th level or lower without using any spell slots.

The Storm Never Ends (Costs 3 Actions): For 1d4 turns whenever Cavagata deals Lightning, Thunder, and/or Cold damage she heals for 1/4 of that damage. (This action can only be used 2d4+3 turns after it is used)

Legendary Wild Shape (merfolk/sea serpent) (costs 4 actions): Cavagata can transform into ether a merfolk (look at the separate character sheet for stats) losing all of her legendary abilities and actions except for Legendary Wild Shape and Frightful Presence and falling Prone or back into a sea serpent regaining all legendary abilities and actions from her sea serpent form and losing all of her additional abilities from her merfolk form and falling Prone. additionally if her Hp reaches 0 in her merfolk form she automatically goes back into her sea serpent form.