Starlight Symphony

You can create and mold a shining cursed fog.

Cursed Energy
Starting at 1st level, you can harness your negative feelings into a usable source of energy, called cursed energy. These feelings can be harnessed into attacks or abilities. The number of cursed energy you possess is based on your class, some classes use a modifier that being charisma or wisdom (Player’s choice)

Your cursed energy DC is 8 + user cursed energy ability modifier + proficiency bonus.

Cursed Fog
Starting at 1st level, you can spend Cursed Energy up to your Cursed Energy modifier as an action. You create 10 feet of fog around yourself for each cursed energy. The fog lasts for 1 minute, spreads around corners, heavily obscures the area and you choose if the fog follows you or not as part of the action to create it. Creatures within your fog have disadvantage on Perception and Investigation checks and cannot detect cursed energy.

At 6th level, you can use your reaction to give advantage or disadvantage to a roll made by a creature within your cursed fog and can spend up to twice your Cursed Energy modifier when creating your cursed fog. You can spend up to thrice your Cursed Energy modifier at 11th level.

Kitsune Creation
At 3rd level, you can summon a fox shikigami as an action for 2 cursed energy. The shikigami lasts for 24 hours or until dismissed as a free action. Your fox shikigami act on your turn and you can command all fox shikigami as a bonus action.

You can have a number of shikigami summoned equal to your proficiency bonus and always know if your shikigami has died.

Living Fog
At 6th level, you have learned to become the fog itself. As an action for 3 Cursed Energy you transform yourself or one of your fox shikigami into a misty cloud for up to 1 hour while concentrating. While in this form, your only method of moving is a fly speed of 30 feet. You can enter and occupy the space of another creature. While occupying the space of another creature, you can force them to make a Constitution saving throw, taking Xd8 equal to your Cursed Energy modifier in cold damage on a failed save as they choke on your fog.

You have resistance to nonmagical damage and advantage on Strength, Dexterity, and Constitution saving throws. You can pass through small holes, narrow openings, and even mere cracks, though you treat liquids as though they were solid surfaces. You can’t fall and remain hovering in the air even when stunned or otherwise incapacitated.

While in the form of a misty cloud, you can’t manipulate objects, and any objects you were carrying or holding can’t be dropped, used, or otherwise interacted with. You can spend an additional 3 cursed energy to also become invisible for the duration.

Inari
At 11th level, as a full turn action for 8 cursed energy you can summon Inari in an unoccupied space within 10 feet. Inari disappears after 1 minute and uses your proficiency bonus. You can command Inari and your fox shikigami as an action on your turn. Inari is considered one of your fox shikigami for any of your features other than Living Fog.

Domain Expansion: Heaven and Earth
At 18th level, you have completed your technique, allowing you to expand your domain. Your domain is an expansive field of fog with two towering spirits at the north and south. All creatures other than you are completely blinded by the cursed fog within your domain and suffer the effects of your Cursed Fog. At initiative 20, all creatures take 5d10 cold damage as they struggle to breathe in the cursed fog.