Orc Ga Okashite Kurenai Chapter 34

Rollol put a petrification spell on Lara but Lara used her own magic to hold off the spell. However, in their next confrontation, when Lara grabbed hold of Rollol, she released her magic so the petrification spell takes full effect, turning her entirely into stone. By the time Rollol realized this, he was already stuck to Lara's statue and was defeated.