negates acqua attack

Kanzaki Kaori reached for her sword.
Acqua descended like a wave of pure destruction. She looked up, glaring, pressing her feet
hard into the debris-laden plaza. In a flash, she drew the katana, positioning it
horizontally.
It wasn’t for a counterattack.
Everything was for defense. She immediately drew every mark, every sign, every symbol
from every time and place in her mind to build a spell to serve as a shield.
(I won’t give up!!)
Acqua of the Back fell to the ground with all his might.
Light raged.
Kanzaki Kaori’s eyes, her ears, her nose, her tongue, her skin—all of it disappeared.

***

(It’s...gone...? The spell, the magic—it’s gone?)
Kanzaki came to and looked up.
One act, in disregard of good or evil, strong or weak, that would cancel any magic without
an issue.
She knew of only one person who could do something so absurd.
“Could it...be...?”
Her senses returned.
Her own words made it to her ears, and it was as though it signaled the rest of her senses
to breathe back into her. Despite Acqua’s nightmarish strike, the scenery was the same as
before, as though literally nothing had happened. And one person stood at the center of
it.
Kamijou Touma.
He suppressed Acqua’s magical attack head-on, then grabbed the mace hard enough to
crush it.
If Acqua of the Back had swung his mace with purely physical strength, the blood-covered
Kamijou’s right hand would have been crushed to pieces. But this was a purely magic-
based attack. And his right hand had the ability to blow away any supernatural powers,
no matter what they were.
Even if Acqua’s attack had been an extremely powerful spell.
His right hand brutally nullified it all!!

- Toaru Majutsu no Index Volume 16, Chapter 4 Parts 4 & 5