negates fiama attack

Kamijou’s fist naturally tightened more than ever before and the third arm stretching
from Fiamma’s right shoulder moved as if in response. He spoke while almost licking his
lips.
“So you want to do this? Fine. I might be a little awkward though because I was only just
getting warmed up.”
“Shut up!!” Kamijou yelled in anger and ran forward.
In that very instant, an explosive light was emitted from Fiamma’s third arm.
Sound disappeared.
Only the intense impact hitting his outstretched right hand got through to Kamijou.
When the light disappeared, Kamijou and Fiamma were still glaring at each other.
That single attack had held enough destructive force to wipe a large cathedral off the
map.
“I see. As expected of the rare right hand that I’m after. Seeing it up close has me
surprised yet again at how singular it is.”
His own attack had been negated, but Fiamma looked satisfied.

- Toaru Majutsu no Index Volume 18, Epilogue