Fate Zero Episode 18

so much irony

*sighs* Kirei, is in his prime during Fate/Zero, during FSN, Kirei is ten years older and ten years rusty. And Shirou only beats him during Fate, in Heaven's Feel, Shirou doesnt get his head smashed, simply cause Kirei's life ran out of time. As for the Fate route, where Shirou 'beats' him, Shirou is trapped in a curse, Kirei was not expecting him to suddenly pull out an Avalon out his ass(cause he didnt even know he could trace, much less such things) and stick a dagger equal to a bomb on his heart. So basecly, Kirei lost there, cause of the element of surprise.

That's where it got really lame. Instead of trapping shirou, kirei could've just easily killed him.

while that works for other villains. It would not be Kirei, if he did not make the son of his most hated/loved enemy suffer. This is Kirei, the only 100% evil character in the Nasuverse