blocks hit from acqua

The giant mace came down hard at her from directly overhead; Kanzaki positioned her
katana horizontally to stop it. When they clashed, the impact sent an enormous shock
rattling through her katana to her arms, her torso, and down to her feet all at once, causing
her boot soles to dig inches into the ground. It was hard tile underfoot, but she sunk into
it like it was mud. The attack hadn’t struck her head, but she felt herself waver, as though
it had shaken her brain.
But she endured it.
And the moment after Acqua’s mighty attack, with all his weight behind it, there would
come an opening.

- Toaru Majutsu no Index Volume 16, Chapter 3 Part 3