The Crimson Butterfly [My Hero Academia & Tokyo Ghoul]

Nana Osaki's Third New Quirk: Lightning Blade

Nana can also use Lightning Blade to split a bolt of lightning. Although this indicates greater finesse with Nana's Lightning Blade quirk, it's not too much different from the original quirk because they are performed in fundamentally the same way: both concentrate electricity in her hand and both are used to rapidly pierce targets. Nana can also flow it into small sharp weapons like a knife or kunai, enhancing its slicing power and giving her a method of throwing her Lightning Blade. 

Another variation of her Lightning Blade uses shape transformation to create countless sharp needles that are fired at the enemy in quick succession. By increasing the amount of energy used, the number of needles increases proportionally. When used in tandem with her Kakugan, it becomes far more effective and deadly, as it allows Nana to precisely shoot for the target's vital points. 

Nana can also form lightning in her hand and launch it at the opponent in the form of a tiger/wolf/dragon (whatever Nana wants) to attack them. As the wolf/tiger/dragon is highly fast and its movements are unpredictable, it is very difficult to avoid. Nana's hand remains connected to the wolf/tiger/dragon by a cord of lightning, allowing her to freely manipulate the speed and range of the technique. 

The original Lightning Blade gained its power by shaping it into a form sufficient for an electrical discharge and using it together with Nana's own "thrust". This technique changes its shape to form the original Lightning Blade into a spear, adapting it for mid-range attacks with a maximum range of about five meters. Its increased range means there is less of a risk to Nana. It also has the advantage of being able to be used for surprise attacks and capturing. When the enemy's body is pierced, Nana can alter the spear's shape into multiple additional blades, increasing the number of wounds. The blade can also be swung in order to cut things as well as cause fatal injuries. This technique can act as a makeshift sword if Nana loses her scythe. 

Super Move:

Nana's super move of this quirk is called Kirin. Kirin is an extremely powerful Lightning Blade quirk technique. Here Nana forms lightning in her hands high up from the sky and launches it at the opponent in the form of a dragon to attack them which reaches the ground in 1/1000th of a second. Although shaping and guiding the lightning to the target requires a lot of energy. This technique is powerful enough to completely obliterate a mountain or a certain wide range of areas. 

Drawbacks:

The speed at which the Lightning Blade quirk is performed, despite being one of its greatest assets, also represents one of its biggest drawbacks. The user has to move at their target so fast that it causes a tunnel vision-like effect for them and because they charge in a straight line, it is easy for the enemies to attack the user, and because of the tunnel vision, it is difficult for the user to see these attacks much less react to them. For this reason, most users cannot use their Lightning Blade quirk safely. However, a Ghoul quirk user who possesses Kakugan like Nana herself can overcome these drawbacks due to the heightened visual perception of her Kakugan which prevents tunnel vision from occurring. And also the predictive capabilities of her Kakugan and her Ghoul quirk-sensing ability make it even easier for her to avoid counterattacks.