[color=ed1c24][b]Red Team:[/b][/color] Do not neglect the Night Parade of a Hundred Mixed-Bloods - Even the weakest of them can withstand one or two blows from a Servant, while the strongest of them can withstand [i]five[/i] blows from one. 

Ren no Nurarhiyon himself can withstand six or even [i]seven[/i] blows from a Servant and can turn himself and his troops invisible with a power akin to a weaker version of an Assassin's Presence Concealment. Karna can see through that with his Clairvoyance Skill, but it's still going to be useful for him if used right. He also emits a pheromone which allows his Mixed-Blood troops to keep their lucidity and even think tactically despite surrendering to their Inversion Impulse.