Kinuhata Saiai confronted twenty St. Germains.
Altogether, her opponents could wield two thousand spears at once and they attacked unendingly from every direction around her.

[…]

Also, another hand reached in to grab and crush the countless spears shooting toward Kinuhata like bullets.
That hand belonged to Mugino Shizuri.
She had a simple means of defense. Her mechanical eye would track the spears’ movements and her weaponized prosthetic hand would swing up with superhuman speed. With a sound like a sewing machine, she grabbed and broke each and every approaching spear.
It was simple to describe, but it made for a threatening visual when done fast enough and often enough to form afterimages.

Toaru Majutsu no Index New Testament vol. 12 ch.3 pt.15