You can attempt to slice Rust up if you want- It's possible to kill he- them. They just eventually return in the Nexus somewhere else... They also often overpower me thus why I sorta... died in there... Pinky you might have a chance at slashing them to shreds. Maybe better than I do. I've encountered them dozens of times and only managed to kill them once or twice-

Description: So, I actually got a couple of minisprites done for some of Urotsuki's effects. -Sal