The monsters were fighting in a blood fest in the middle of the plant factory containers that had been severed and crushed into rubble. This was obviously different from the normal concept of winning or losing. Defense was non-existent, and just like the words implied, they were killing each other. It was this kind of battle. They were beating, crushing, piercing, slicing, ripping and gnawing at each other. This battle had all sorts of destructive acts, and both of them continued to fight to the death as they fell to the ground.

[...]

A terrifying explosive sound rang, and the two people in the air changed. On one side…it looked like a human woman was devoured by a dinosaur. The silhouette of this monster suddenly slipped, and her body continued to crash down the pile of containers before falling over to where Kumokawa Maria was.

[...]

That man lost his left arm, his upper body was stained with blood, and his skin wasn’t intact.

That man used his own method to ruin his own personality.

It was a mystery what skill was used, as the remaining right arm, from the hand to the elbow, was stabbed into the dinosaur’s head. And then, a decisive blow was given. The dinosaur continued to shriek, but midway through, it lost all its strength. The body looked like it was tossed out as it then stopped completely. The color of the skin became transparent, and then it started to dissolve into the snow.

Toaru Majutsu no Index New Testament vol.4 period 32