Formalhaut has been assigned to assist Mira in the mission to subdue the magical girls. It's likely that this is also a form of surveillance from the evil king, who has heard rumors that Mira, the evil strategist, is inexplicably infatuated with a magical girl.
At the very least, 
I will be the one defeating her…
‫على الأقل، سأكون أنا من يهزمها...
Denn ich werde derjenige sein,
Après tout,
A sconfiggerla...
No fim de tudo, serei eu a derrotá-la.
Как минимум… победить её точно должен я…