Each wing was thoroughly infused with the Power of God, and each attack could flatten mountains and carve valleys like Divine Judgment
[...]
The water wings that were infused with Telesma from tip to tip could each send out a Judgment that could wreck a city. Once it sent that, this beach would vanish completely, forming a crate like cover, like how in legend, God shaped the earth.
[...]
The water wing came swinging down at Kanzaki Kaori with shocking speed. It was all over. Everything should have been over. BAM! With a clear sound, the water wing was sliced in half by a horizontal flash. Who could have predicted such a scene? Power of God was stunned, and Kanzaki merely took a deep breath in response. The over two-meter-long nodachi that was hanging from Kanzaki Kaori’s waist. The moment she drew the sword, the seventy-meter-long water wing was sliced easily like a bamboo tube. Also, the remains of the sliced water wing immediately scattered into powder like an explosion and vanished into the darkness of the night sky.

Toaru Majutsu no Index vol.4 ch.3 pt.3, 5