And now....here comes the ratman spirit to say "be my ally! I just kind of caused everything to go to hell during your battle but oh well...BTW I wanna kill all humans ;)"
during the battlefield--during the battle
battlefield is a place, sentence is structured for an event. if you mean the battlefield all the time, sentence needs restructuring.
No way will the humans agree to allying with him, after all, it was his massacre of Atria and defeat of Aria that lead to the defeat of the allied forces.
Maybe he can attack the Ratman city whilst they’re busy playing Simcity at Ronta and attacking the dwarves?
Innovation