appeal to the loyalty of Durga's guards, requesting they turn on him

"I was the one who led you in battle," you yell, holding out your arms and stepping out from behind the cover. "I alone deserve your fealty, not this slug."

The plasma blasts stop as they consider your words. Durga screams back, "no! This victory belongs to me! This is my empire!"

His fury is unconvincing, and the guards turn around and vaporize him in a horrible puff of horrendous plasma discharge.

And, with that, the Empire is yours.