A war becomes a duel, a feast for  crows becomes a single murder. It was all of this, a glorious clash of steel, blood, sweat, bile, willpower that fed Kirian the Witch Knight. 

As he pressed forward, he found his probing strike deflected with all needed deftness. This was unsurprising, given that she'd survived this long in the seige with only one eye. That could very well have been a fatal flaw, and Kirian was well prepared to make good on that. The edge of his blade was deflected outside her guard to Kirian's right side, followed by an arcing slash up towards his face. She may have thought his attack repelled, but his gambit was successful. 

Instead of fully retreating, he followed the impact of her parry, ducking down and twisting his right side towards her. To her peril, she'd stepped her right foot well within blade's reach, under an eyesocket without depth perception or peripheral vision. Kirian pivoted low, keeping his grip close to his chest, and used the counter-momentum to rap the inside of her right knee with the last four inches of the flat of his blade. With the torsion of his core behind the strike, it would land as the lady knight's counterattack would have grazed Kirian's face, and just as painfully as a kick. In that window of pain, he'd press his advantage.

Before she had time to pull her sword down, Kirian pushed forward and up with his trailing left leg, angling his sword upward into a modified ox stance. The primary difference would be that instead of pointing his blade forward to level with the centerline, he'd pivot it backward between her arms, as a metal lever behind the heels of her palms. At the same time, he was ramming his shoulder into her diaphragm, just underneath her miniature breastplate. As he'd follow through, he'd complete his turn and push back and outward with his sword. A complicated maneuver, he intended to press his blade roughly against the inside of his opponent's wrists, and bear her heavily back to slam against the side of the carriage. 

This assault should wind her further, and part her with her sword through pure physical leverage, if she could surpress the instinct to drop it outright. Even if she did have the presence of mind to pull her guard up to avoid the "grapple", it would bring her center of gravity too far back to resist getting slammed against the carriage. At this range, a hunk of metal like her knife had all the wrong balance. Yes it could be more devastating than a normal sword at the sweetspot of its range, but it would likely be difficult to maneuver without the momentum of the body behind it. At that point, Kirian was close and heavy enough to pin her struggling, and end it with his dagger. A murder settles a battle, a duel settles a war. The lady knight's options had been swiftly severed, and soon her neck would be as well.