Flowing Blade-Like Flame

A technique Sakaki developed, it allows him to flow his  chakra through his blade, setting it ablaze and vastly enhancing it's damage potency. While techniques like this are mostly done with - or -themed energy, the sheer density and power of Sakaki's chakra allows him to use fire and achieve possibly even greater effects. Even being near the blade causes nearby flammable objects to be lit, and Sakaki can only escape being burned and his blade being molten by coating himself and his katana in a layer of chakra, something he has trained upon for years and proven by the various burn marks across his arms and chest from when he was a kid.

The power of this technique is utterly devastating, capable of slicing through a lightning-charged sword of a Kumogakure sword with ease, while normally the high vibration rate would make this impossible. The heat of the blade is enough to evaporate incoming water projectiles without any loss of power.