Lightning Magic 「雷魔法 Kaminari Mahō」 is a form of magic that allows the users to manipulate the element of lightning. It is a derivative of Wind Magic. This form of magic allows the users to generate and manipulate lightning at will. Without the use of a Grimoire, the users are still able to use this magic. However, in order to use it to its full potential, specific spells are required, which are stored within Grimoires. Mages use lightning magic for its high speed and attack power.
Shunko: Shunko is a basic use of lightning which Yoruichi uses to coat her body. She finds being in a completely exposed state destestable so, she had a weapon created to harness the lightning in this form. In so doing, she's able to use a lightning coated blade, the boots and arm gear of her outfit to channel the basic form of her magic without having to use her whole body to do so.
Creation Magic Yoruichi can use lightning based creation magic to enhance her physical form giving her the ability to change her shape and use the Lightning element of her magic in new ways.
Shunkō: Raijin Senkei (瞬閧 雷神戦形, Flash War Cry: Thunder God War Form): With the use of her Grimoire, Yoruichi's back creates a circle of electrical energy in the shape of Raijin's drums behind her as Yoruichi unleashes a giant column of concentrated electrical energy to engulf her opponent.
Spirit Magic With the completion of a dungeon, before she even became a Magic Knight, Yoruichi was able to capture the spirit of a lightning spirit in the form of a large cat. This cat spirit seems to create its own forms of her magic, even combining with her eventually to form her ultimate battle posture. But much like Yoruichi herself the lightning cat spirit is fickle so such magic isn't easily controllable.
Shunshin Chōhengen (瞬神超変幻, Flash God Super Transformation): While Shunkō: Raijin Senkei is already activated, Yoruichi can transform her mind and body even further. This transformation can be activated remotely even against her will by the spirit of her Grimoire.
Shunkō: Raiju Senkei: Shunryū Kokubyō Senkei (瞬閧 雷獣戦形 瞬霳黒猫戦姫, Flash War Cry: Thunder Beast Battle Form: Flash God Black Cat Warrior Princess): With an open Grimoire the spirit of the cat creature appears in front of her book before enveloping Yoruichi in a column of lightning. hen the energy disappears Yoruichi has taken on the form of a hybrid of Shunkō and the feline form. Her feet become clawed cat paws, this form clads her arms and legs in electricity covering her forearms past the elbow and her legs up to her thighs, each ending with claws made of electrical energy. The energy forms her hair into the form of cat ears and she grows a tail. This form sheaths her in an aura of electrical energy. This form gives her the mentality of a cat and allows the cat nature of "fickleness" to manifest in her mana. While Yoruichi is naturally moody, she is even more so in this form; her mana is directly responsive to her changes in mood, and therefore becomes reliably unstable by changing 48 times per second. This form seems to only be controllable by one other person.
Though born in a foreign land, Yoruichi was able to claim a grimoire for herself. It is light colored with a static white filigree and a three leaf clover motif. It has lightning bolts down the spine and a small cat face on the back of it.
Yoruichi uses a thick bladed rapier with an almost chocolate brown blade to channel her lightning magic. It has a set of roses at the hilt and is worth more than 5 years pay as a Captain. She uses this in battle and it is seen as her primary weapon aside from her grimoire.