OOC: I should clarify the design better: There is no blade. It's a black hook that is pointed at both ends, and at the end of the thing on the top(There's a pic of it in the PM, same one as the one with Saras' armor).
IC: "It can materialize a purple energy chain thing at the top of the hook part, to pretty much any length, and with a small bladed hook on the end made of the same purple energy. I haven't found a length limit yet, so as far as I know it might not have one. I've heard rumors of other abilities as well, but that's all I ever saw." He elaborates.