Weiss is a very versatile fighter and her knight can definitely cause Yang a lot of trouble. That being said, it will likely take up quite a bit of energy to summon it and Weiss will be vulnerable if she uses it. Yang’s gauntlets will keep Weiss on the run and should help her break out of any ice traps. It’s a pretty close fight and should go down to the wire. Weiss may even surprise me and take the win someday but not this day. Yang wins.