Arashi Ringu

Arashi Ringu (嵐のリング, Storm Ring) is one of the seven legendary rings forged by using a legendary wolf spirit. Its main ability is Wounding, it also allows the user to open storm type boxes. It takes the form of a ring which emitts a red flame when ignited using spiritual energy.

Powers
Wounding: This ring allows the ability of wounding, which means the user can use the ring to ignite weapons or the users fists in order to create lethal wounds which can cause quick blood loss.

Storm Box Unlocking: This ring allows the user to open storm type boxes. This is the only ring which can open storm type boxes as it was the only storm ring made.

Behind The Scenes
This was based off of Katekyo Hitman Reborn's seven elements.