The situation wasn't over. Sarah Kerrigan made contact with the local commander and the leader of the rebel forces at the frontlines of the main star in the Antiga Sector. She assassinated the Federal Army officers at the base, took control of it, and then installed a Psionic Emitter inside, attracting a vast swarm of the Beast Clan. This was an act of retaliation against Terrans, and it marked the birth of the Queen of Blades.
Of course, Feng Yi had only glanced through the legendary tales of the Queen of Blades. His main focus was on the unit types. Arguably, all Beast Clan units were controlled by the Queen of Blades, Sarah Kerrigan.