Deal

Half an hour later, Mira and Yanira stood around a bloody, acidic pile of worm flesh. In terms of regenerative power, toughness, and overall being a pain in the ass to deal with, the worm was by far one of the most troublesome enemies Mira had ever faced.

Every time she cut a section away, it started to regrow, creating a second smaller worm. There was no 'true brain' inside its body, making it able to duplicate almost endlessly. It was highly resistant to physical attacks, lived in a place where its weakness was accounted for, and was seemingly immortal.

It wasn't all that strong, except for its acidic poison, but its durability was maxed out.

Mira was only able to truly kill by cutting it into countless little pieces and draining all its blood. However, she wasn't left unscathed.