Jogo's technique (Disaster Flames)
Pyrokinesis
With Jogo's technique, all fire related spells doesn't take any components or spell slots. Also all fire based spells do double of what ever. Can use this equal to your proficiency bonus until a long rest

Cursed Energy: LV x 4.5
Regen: # of Cursed energy x 15 hp as bonus action or reaction

Cursed Armor: Gain resistance to Cold and Fire damage
Purple Flames: Your flames burn brighter when you use them at maximum power. Each time you use a feature granted by this Innate Technique; you will gain 1 point of Purple Flames. You can have a number of purple flames points up to your proficiency bonus, which are lost at the end of a short or long rest.
Continuous Flames: Your flames keep burning your targets after they get hit. Whenever a creature is hit or fails a saving throw against taking damage by your Innate Technique being in its purple version, they are engulfed in flames, taking additional fire damage equal to your Charisma score

Disaster Flames: When you take the Attack action, you can spend an amount of cursed energy up to 3x of your Charisma modifier to replace one of those attacks with a melee cursed energy attack roll or ranged cursed energy attack roll against a creature within 100 feet of you. On a hit, the target takes 1d8 fire damage per cursed energy spent and must make a Constitution saving throw. On a failure, they receive First Degree burns. On a success, they receive no additional conditions. If they fail by 5 or more, they receive Second Degree burns. All creatures of your choice within a 10-foot cone behind the target are also targeted.  Purple Hands. When you use this technique, you can spend 2 purple flame points to increase the damage die by one tier (1d8 -> 1d10). Additionally, if the target fails the Constitution saving throw, they receive Second Degree burns. If they fail by 5 or more, they receive Third Degree burns. The cone is also increased to 30 feet

Erupting Volcanoes- allowing you to create up to a number of small magma volcanoes equal to your Charisma modifier on surfaces within 120 feet, each costing 1 cursed energy and occupying a 5-foot radius until the start of your next turn. When created, each volcano can erupt in a 30-foot-long, 10-foot-wide line. Creatures in the line must make a Dexterity saving throw, taking 16d10 fire damage on a failure, becoming restrained for 1 minute, and making a Constitution save to resist burn severity—failing by 5 or more causes third-degree burns, while a normal failure causes second-degree burns; success halves the damage and prevents restraint and burns. Instead of erupting immediately, you may delay an eruption and trigger it as a reaction when a creature enters its blast zone. Areas where volcanoes are placed become difficult terrain for 1 minute, and creatures ending their turn there take 5d10 fire damage. Restrained creatures can make Strength saving throws at the start of their turns to escape. If a creature is in range of multiple volcanoes, the save DC increases by 1 for each additional volcano affecting it. Additionally, you may spend 2 Purple Flame Points to enhance the blast, doubling its range and width (60 ft. long, 20 ft. wide), and forcing creatures to roll their Dexterity save at disadvantage

Ember Insects - You have learned how to create a small insect shikigami. As an action, you may spend an amount of Cursed Energy up to your 2x Charisma modifier to create an equal number of Ember Insects within 10 feet of you for 1 minute. Purple Insects. When you use this technique, you can spend 3 Purple Flames points to cause the insects to gain a +2 in all of their ability scores, and increase their explosion damage die to 8d4

Hot Comet: You can create a big rock of solidified magma to throw at an opponent. As an action for 10 cursed energy, you choose a point within 60 feet of you. All creatures in a 20-foot square centered at that point must make a Dexterity saving throw. On a failure, they take 5d10 fire damage and 17d10 bludgeoning damage and are knocked prone. On a success, they take half as much damage and are not knocked prone. This technique deals twice as much damage to objects and structures. All objects in the area take maximum damage. The area affected becomes difficult terrain. Purple Comet. When you use this technique, you can spend 4 purple flame points to increase its range to 120 feet and its square to 40 feet. The creatures have disadvantage on the Dexterity saving throw

Lava Hands: You create up to two massive hands of molten lava within 120 feet for 1 minute by spending cursed energy equal to twice your Charisma modifier. Each hand has AC equal to your spell save DC and hit points equal to your Jujutsu Sorcerer level times the cursed energy spent. The hands are vulnerable to bludgeoning, cold, and slashing damage; resistant to piercing; and immune to fire, necrotic, poison, and psychic damage. They have Strength and Dexterity equal to your Charisma modifier plus the cursed energy spent (max 28). As a bonus action, you can move each hand up to 60 feet and choose one of the following effects:

Clenched Fist: Makes a melee attack, dealing fire damage in d8s equal to your Charisma modifier.

Forceful Hand: Attempts to push a creature, moving them up to 5 feet + 5 × Charisma modifier (with advantage against Medium or smaller targets).

Grasping Hand: Grapples a creature and can crush them for 5d10 + Charisma modifier bludgeoning damage (advantage if the target is smaller).

Interposing Hand: Shields you from a chosen creature, granting half cover and blocking movement unless the creature’s Strength exceeds the hand’s.

By spending 2 extra cursed energy, you can enlarge the hands up to Gargantuan size, unlocking additional effects:

Grasping Hand Upgrade: Can now target structures and objects, dealing double damage to structures when crushed.

Building Crush: Throws a large or larger object in a 30 ft. line, forcing creatures in the path to make a Strength save or take d10s of bludgeoning damage equal to your Charisma modifier and be pushed. Huge and Gargantuan objects deal +2 and +4 dice respectively.

Structural Sandwich: Smashing two structures into each other deals increased damage (up one die tier), forces saving throws at disadvantage, and deals quadruple damage to the structures.

You must concentrate to maintain Lava Hands, and the effect ends if concentration is broken or the hands are destroyed.

Maximum Meteor- You may fly up high in the air summoning a giant meteor, costing 50 cursed energy points, which is a 60 foot sphere centered on you. You can move this sphere up to 60 feet in any direction as a bonus action which you can only take at least one round after the sphere is formed, and creatures other than you that overlap with the sphere for the first time that movement must make a dexterity saving throw or take 30d12 fire and 30d12 bludgeoning damage. Objects which overlap with the sphere take this same damage. The sphere lasts for 1 minute, until it touches the ground or a creature(exploding at end of its movement path), or until you lose concentration as if concentrating on a spell. Purple Meteor. When you use this feature, you may spend 6 Purple Flame points to double this feature's radius. Creatures have disadvantage on the Dexterity saving throw

DOMAIN EXPANSION: Coffin of the Iron Mountain

Full Domain: Cost 50 cursed energy to use. All creatures within 45ft of you are now incased in the domain. Your domain is a huge magma-like dimension, which irradiates extreme heat. While inside it, every creature except you must attempt a Constitution saving throw at the end of each of their turns. On a failure, they take 30d20 fire damage and they also, if they failed by 5 or more, receive one level of exhaustion. On a success, they take half as much damage and do not receive a level of exhaustion. Creatures inside the dome have a disadvantage on attack rolls if they don't have beneficial fire damage. The Constitution save and its effects caused by this domain are the sure hit effect of this domain.

While in the domain you spend 0 cursed energy and the cursed techniques and domain damage have 9 additional dice, gain a +5 bonus to their DCs and a +5 bonus to hit