Hakudō: Railgun

An advanced form of the Magnetism Release: Repulse, Kenshin launches metal alloy projectiles using advanced magnetic fields. The projectiles possess extremely large amounts of kinetic energy and can inflict large amounts of damage. The projectile travels at very high speeds and are almost impossible to dodge. Due to the high speeds required this technique only works with magnetic projectiles and even then requires very high magnetic fields and thus is very draining on Kenshin's chakra reserves. As such it can only be used two to three times a day.