Rei-Bullets: Rei can make orbs of reishi and shoot them out her guns.
Rei-Blades: Rei would make blades on her guns.
Rei-Heal: Rei can use the reishi around her to heal wounds of hers and others. The speed of the healing varies from how bad the wound is.
Hirenkakyu: This allows Rei to move quickly in short distances. Its a bit faster than a flash step. She can also create a board of reishi so she can fly.
Ransōtengai: This is a high level technique that allows the user to control their body parts using strings of spirit energy controlled by their brain, forming lines or strings out of countless spiritrons. By using this technique, the user can control their body as one would a puppet, allowing them to move freely despite paralysis, broken limbs, or any other force that would impede normal movement.
Angel Jugdement: Rei most powerful move she would grab her cross and pray and if the cross turn red, she would slash a cross with her reishi blades then she would shoot twenty rei-bullets in the center. When all of that is done Rei would hit the guns together and say "Repent" and her foe will blow up.