Urumi

It would be worthwhile for you to look at the Urumi, an Indian weapon if you've never seen one. The basic idea is rather straightforward; it works similarly to a whip, except that you hold a flexible bit of extremely sharp metal in your hand rather than a long leather strap. Furthermore, similar to a whip, if you don't know how to use it, it may snap back and seriously hurt you instead of the object you're trying to hit.

Simple variants of this hybrid weapon consist of a single flexible piece of metal that is 4 or 5 feet long, supported by a handle with a knuckle guard and a thumb guard. The metal can cut through human flesh. There are more intricate variations with blades that have numerous blades joined and much longer. According to rumors, one type even featured 32 distinct blades. The risk of using it increased due to the additional blades.

Country of origin: India