With all the abilities that Mira has at her disposal, it would be surprising if she didn't have anything that she could use to take care of the Nightbringer Ant Queen and her guards.
When she first came across the Nightbringer Ants, Mira had already begun coming up with a plan to take her down.
However, Mira knew that if she were to face off against a Rank 7 insect, especially a mutated insect focused on defense and intelligence, she wouldn't be able to deal with it unscathed. From her predictions, the Nightbringer Queen was at least a Low-Stage Rank 7 insect. Most likely was a Mid-Stage Rank 7 Nightbrigner Ant Queen!
As for the guards, Mira had the same assumption.
Actually, it was the guards that Mira was the most worried about. Ant Queens generally aren't that strong, even with a high cultivation. Their jobs aren't to attack, to begin with. Their jobs are to lay eggs and take care of the larva.
