Roze steps backward before blast the bug with concentrated force right through its abdomen. But the bug wasn't dead yet, Zarina distracts the bug before out of no where Arakiel cuts its head clear off.
Spoiler
It was already dead after Roze blasted it, so Arakiel easily attacks its head off
Everyone gets 134 XP each
Anevia: "Shall we go in? I would love a place to sit down"