All at once, hundreds of spears rushed in. She swung her steel arms about, but that was nowhere near enough for this.

[…]

A brilliant beam of light shot in from the side and overturned the assumption of her death.
Every last spear was instantly vaporized.
A swirl of scorching heat melted the door leading to the theatre’s first story seats as well as the surrounding wall.
A crackling charge filled the air.
Time seemed to stop and extreme violence ruled the scene.
“Hi there.”
The owner of that violence stepped into the theatre.
It was Mugino Shizuri.
She was Meltdowner, Academy City’s #4 Level 5.

Toaru Majutsu no Index New Testament vol. 12 ch.3 pt.6