The path of your shikigami constitutes the domain.
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.
Minor Star Shikigami
Starting at 1st level, you can spend cursed energy up to your proficiency bonus as an action. For every cursed energy, you summon a minor shikigami in an unoccupied space within 5 ft of you. As a bonus action, you can command any shikigami created with your technique, otherwise they take the dodge action. As an action, you can share senses with one of your minor shikigami. While sharing senses with your shikigami, you are blinded and deafened. You can only have up to your proficiency bonus in shikigami at a time.
Pseudo-Domain Constitution
Starting at 3rd level, you have learned to form a pseudo-domain that follows the path of your shikigami. As a bonus action, you command any number of your minor shikigami to create your domain. They spend their action taking the dash action to orbit around a point, forming a circle within 5 ft of the center. On each of your turns, you can use your bonus action to increase the radius of the domain by 5 ft or command more shikigami to join the domain orbit.
The maximum range and damage of the domain depends on the number of shikigami making up the domain. A creature within the domain other than you must make a Dexterity saving throw at the end of your turn. On a failed save, a creature takes 1d6 slashing damage per orbiting shikigami or half as much on a success.
The maximum radius of the domain is 5 ft x the number of orbiting shikigami. If one of the orbiting shikigami is killed, the range and damage decreases. If all of your shikigami stop orbiting the domain path, the pseudo-domain ends.
Major Star Shikigami
Starting at 6th level, you have learned how to keep your pseudo-domain active without sacrificing offensive power. Your pseudo-domain now deals 1d8 slashing damage per shikigami creating the domain. You gain the ability to summon your major star shikigami. You can summon your major star shikigami as an action for 6 CE and can command it as a bonus action, otherwise it takes the dodge action. You can only have one major star shikigami active at a time. Once your major star shikigami is killed, you cannot summon it again for 1 hour.
As a Full-Turn Action (Action + Bonus Action + Movement), you can command the major star shikigami to begin forming a special pseudo-domain. Once it has completed a full orbit, the special domain allows your Minor Star Shikigami to move freely within the domain while still maintaining the range and damage of your pseudo-domain. This special domain still follows the same maximum for range and damage, now scaling with the number of Minor Star Shikigami within the domain.
Army of the Dictator
At 11th level, you have learned mass summoning. You can now maintain a number of Minor Star Shikigami equal to three times your proficiency bonus and can have two Major Star Shikigami active at once.
Additionally, the damage of your pseudo-domain increases to 1d10 slashing damage per shikigami orbiting and ignores immunity and resistance to slashing damage. The radius of your pseudo-domain increases to 10 ft x the number of orbiting shikigami.
Domain Expansion: Divine Mandate
Finally at 18th level, you have learned to expand your domain. At initiative 20, all creatures of your choice within your domain take 1d12 slashing damage for every star shikigami you have summoned within your domain.
Reversal
反転 How to gain this: Cursed Technique Reversal →
Star Guardian
You have learned your technique reversal that allows your pseudo-domains to instead form an anti-domain. For 4 cursed energy, you reverse one of your active pseudo-domains into an anti-domain. Any guaranteed hits or effects that would cause attacks to automatically hit and saving throws to automatically fail are nullified and have no effect against orbiting shikigami and creatures within the anti-domain. A creature that hits your orbiting shikigami that are creating the anti-domain takes 1d12 slashing damage.