Larxene
Larxene is number XII and is the only female member in Organization XIII
Larxene conspires with Marluxia to overthrow Organization XIII by using Sora. Larxene uses thunder to fight and wields knives held between her fingers and thrown as her weapons. Larxene is agile and can call forth bolts of lightning in battle.
History:
Spoiler:
In her first encounter with Sora, Larxene kicks her and Marluxia's plans into high gear when she attacks Sora, causing him to see his lucky charm, which Naminé has turned into a shape of a star different from Kairi's. After the battle, Larxene mocks Sora, claiming he's trying to "play" the hero. The trust Marluxia and Larxene place in Axel proves to be a mistake when he derails their plans by setting Naminé free. Naminé reveals to Sora that the Organization has been using him since he stepped into Castle Oblivion. Larxene appears to Sora, after he fought the Riku Replica for the fourth time, planning to destroy them all. Again, Larxene mocks Sora for "chaining" himself to false memories of Naminé and the "promise" he made to her. She abuses Naminé by violently pushing her to the ground, knocking her out. This proves fatal for Larxene, as her taunting delays her destroying Sora long enough for Donald and Goofy to return to Sora's aid, and, with Sora's anger aroused, the three of them fight and kill Larxene, leaving only Marluxia to contend with.
Battle Abilities
Larxene is blindingly fast, so much so she appears to teleport. She can divide her power into two bodies. And her Lighting attacks are impossible to dodge. She can only seem to form Lightning strikes and thunderballs. Her thrown daggers are also immensly fast and very difficult to dodge