Hearing Voices

[Frein]

I assume they, like other gnats, are very vulnerable to earth magic. Equipping Stone from CNJ may help anyone trying to do this.

[Melinia]

I assume they, like other gnats, are very vulnerable to earth magic. Equipping Stone from CNJ may help anyone trying to do this.

Damage from the CNJ spells is heavily reduced while you're on THM, so the benefits are effectively counter-balanced by the drawbacks. It might be possible to solo with an equivalent level CNJ (change classes once you're inside the instance), but it's questionable because the class is so fragile and the bugs have a lot of hp. Sleep really seems to be the key to soloing this fight as a spellcaster.