I got the point, doesn't mean that you can attribute other people's defeats to random people of your choice. Darui is his own person, he isn't Zabuza nor is he Hidan. And no, Darui's sword's range is still a significant factor despite Kakashi having beaten people who have superior range. He is in no way range immune, as range is always a large factor of a fight. Darui's striking speed is faster Ay's v1 striking speed given his hand where behind his head yet reached the same position as Ay's arm who never extended his hand that far backwards [
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]. This isn't even mentioning the fact that Darui can wield his sword with a
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(testimony of strength) and use his other hand to cast black lightning, as it only requires two fingers, I believe.