Aerial Burial

Aerial Burial (風葬 Fūsō) is a Air Magic Spell.

Description
A technique created using Air Magic as a base. By manipulating the surrounding air currents in such a way with his magical power, he causes them to rotate at massive speeds, creating an extremely dense sphere of wind which blocks off any oxygen from the outside, and makes it very difficult to break from the inside. It should be noted however, it's impossible to keep this spell active for long periods of time, due to it being taxing on his reserves and he cannot move while using this spell.