A slight wind ignored the flow of the air and headed toward Marian from all directions.
Immediately afterwards, a giant sword sliced through the chain link fence surrounding the ring.
It seemed to fly out from the bottom of Dáinsleif’s scabbard. The long straight sword was gray and narrow. It tore through the chain link fence behind Kamijou.

[…]

The destruction had spread through the chain link fence, the concrete floor, and even the spectator seats. Dust flew up into the air.

Toaru Majutsu no Index New Testament vol.4 ch.n pt.2