Urumi is a Holder type Magic used by Rayule.
Description
A type of Magic which revolves around the use and the manipulation of the black bands circling all of Rayule's fingers. These can produce extendable, flat cables, which can greatly be extended in length, and which can be manipulated at Rayule's whim. This comes in useful both in battle, where the produced cables can be used to strike with enough strength to shatter rock, and outside of it, enabling Rayule to cling on various things from the surrounding environment to reach otherwise unreachable heights, to let himself down slowly from the very same heights, and to move around freely.[1][2]
The Magic is unnamed in the manga, but in the anime it was named after a weapon which has blades similar to its cables; the very cables produced by Rayule, in context, somehow resemble a mummy's wrapping, thus living up to his Egyptian theme.
References