Kuzuki is one of the most skilled humans in type-moon. His fighting style is literally so absurdly weird that it carried him through his first encounter with Saber. Unless your master has a fighting style like Hebi (which is very unlikely, its very unique and isolated in its teachings), it's unlikely any amount of reinforcement will save them. 

Servants are goddamn powerful and its difficult for a human or magus to come close to them, Kuzuki is just an outlier case. Not a good bar to try and reach.