Oh, it seems you suffered an accident, and whatever identity you were supposed to have already died, but fear not, you lived again. Welcome to the ranks of the undying: the Ajin.
As an Ajin. You generate an esoteric energy called IBM (Invisible Black Matter) that's three times more dense than those of a rookie Ajin. You can manifest enough IBM particles to perfuse a large room or manifest your IBM constructs, like Ghosts, for longer durations and in greater quantities.
IBM has unique properties that make it fascinating. It is undetectable when unmanifested and impossible to study even when manifested. You have fine control over your IBM, allowing you to adjust its manifestation speed, decay, and perceptibility. With practice, you can mimic the characteristics of other materials or energies. At advanced levels, your IBM can serve as a substitute power source for your other abilities.
As an Ajin, you have a form of immortality. Whenever you die, you will be revived and reset to a functional state. All wounds, ailments, and fatigue are removed, and lost limbs, organs, and other body parts are regenerated from your IBM. If your body is torn apart, pieces within a certain radius will be integrated, while anything outside that range will be recreated from your IBM. Reformation and regeneration are unstoppable processes.
Most Ajin can manifest a sapient IBM construct called the "Black Ghost." Your Ghost is an extension of yourself and can be mentally controlled. It has limitations in terms of time and distance, but with experience, it becomes more capable of functioning independently, as well as shifting it's form. The Ghost can learn mundane skills and can be physically strong and resilient, but it is not invincible.
Your Ghost can utilize your supernatural abilities and can learn to use them independently. However, its will be limited by your own skill, and you will bear the cost of these abilities.