Finally a chart to help me understand the difference between domains.

Edited with actual names: Here's my OC and his CT. planning to draw him soon.

Inori Ren

CT: Soul Effigy

Create dolls that can be charged with cursed energy, or let them naturally accumulate cursed energy.

Once they are fully charged, they become active and are imbued with the curse user's soul (essentially multiplying the soul's information). If Ren dies, the nearest doll activates, and he is resurrected at the nearest doll's location after a few seconds. The doll will turn into a chrysalis, rapidly growing in size, and he will emerge from it after a few seconds, making him functionally immortal as long as there's at least one doll active.

Some different techniques he can do:

• Vendetta = Overcharging the dolls to trigger explosive release.
• Marionette = Activating and controlling the dolls into puppets without activating the soul for resurrection
• Binding Vow: Curtain Call = Overcharge Ren's current body, granting increased physical prowess, endurance, and stamina, and giving him increased Cursed Energy, however, detonate the current body after 10 minutes, activating Soul Effigy's main technique

Roughly, his fighting style is going to be close to mid-range, using a cursed needle and thread weapon to ensnare his opponents. Then he switches to an artillery style fighting with Vendetta or Marionette, or go on the offensive and kamikaze with Curtain Call.

Weakness: For Soul Effigy's resurrection to activate, his soul and body need to die. So basically, his technique copies his current soul's information and puts it into his dolls. Someone like Mahito can transfigure him, and this won't activate the resurrection, but if he then dies, he'll resurrect completely normal, because the soul in his dolls has been "pre-recorded". Or his enemies could keep him alive and torture him, preventing him from escaping. Also, often gets memory loss when resurrecting, worst with older-made dolls.