Wow. Wow. This is a load of bullshit, and Akito is so angry he can barely think straight. Thankfully he doesn't need to think in order to kill everything trying to hurt him; his instincts are good enough. He fights with his Air Trecks, the short sword his Vilii shard has turned into, and his teeth. Teeth are a very effective weapon, and are - as Akito soon discovers - really good for ripping out throats when you have sharper-than-average canines.