For me this front was hard at first glance. It was bad idea to use here King Hassan because of 3 casters, I don't have dps riders as well, and dps caster, what is it? Okay, it's Nastya but her skills is still low, so I decided to use Merling and Gilgamesh. Still Karna was a problem. I had to sacrifice my Serenity in order to kill him. And he was alive with one 1k hp on 1 hp bar. But, then I eliminated him and MHX and my win became only question of the time. So, yeah.
I even could chose how I'll win. I decided to destory all servants.
My other servants except Serenity didn't lost any hp bar.