Black Ice Release

Black Ice Release is a varient of Ice Release developed by Hyoumu for the Juzen Sabu of Suirengakure. The ice isn't atually black but rather transparent, allowing the black volcanic rock  roadways or the surface of Suirengakure below to be seen through it—hence the term "black ice". The biggest difference between the parent Ice Release and Black Ice Release is that the latter's temperature is  0 °C and never rises, it can drop if nessisary however. Being transparent makes Black Ice Techniques great for ambush and traps.