Yeah, you have good points. I'll concede here.
What does this even imply? The fact that he was beginning to exhaust himself, means his reflexes were regressing. I'm sure he could continue to shunshin in order to avoid Kakuzu's attacks, but he is not shunshin blitzing Kakuzu head on with a Raikiri, if that's what you're implying.
What i'm implying is that Kakashi had enough chakra for Kamui still. So even at that point of the fight, i doubt his sunshin, which is a basic skill, which enhaces his speed (which is aided by stamina, which is converted chakra, or viceversa), would be low. Kakashi having chakra to perform at least 2 kamuis tells me that he being tired doesn't mean that his speed was far from it's max. Meaning that if Kakashi had all his stamina, he probably would've gotten blitzed anyways, when Kakuzu used his phase 2. That's my point.
Kakuzu doesn't have a choice, when Kakashi can surface from below the ground literally right in front of him, or in back, or wherever he wants
And this is where my main point factors in. Imagine Kakuzu like this, but with all 4 masks. The clone would get killed, and the ligthining would get blown away, not parallyzing him.
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. Um, we know for a fact Kakuzu has blood. Kakashi extracted it. Muscles? Don't know, nor does it matter. Asura Paths anatomy isn't that of an ordinary human being, yet that didn't make a difference.
Ok i concede here
Tbh, I can see Hidan being caught off guard and rendered immobile by Kakashi's Doton Dog Summoning like he did to Zabuza.
Zabuza got caught of guard because he had his eyes closed. Even Kakashi admits it (and i'll post the scan if necesary). Zabuza heard the noise but he had his eyes closed so he didn't know what was happening, he only oppened his eyes when the ground was broken, and was late to dodge. Hidan's reflexes and speed are arguably on Zabuza's level when it comes to sunshin, so his movement speed is enough to dodge, he won't have closed eyes like Zabuza. Plus if Hidan is ever trapped like this, Kakuzu shoots an elemental attack at him which he'd survive, but the clones wont, and we're back at it with a 2 v 1 again.
While Kakashi, simultaneously handles Kakuzu with Bunshin feints, and Raiton combos.
If Kakuzu is getting paraylyzed, I see Kakashi swiftly capitalizing by taking out his heart. The remaining hearts roaming freely
Okay this is the main point where we disagree. I alreayd adressed how i think Kakuzu should fight, and it's not with his hearts roaming free, specially with knowledge. First scan i posted, with 2+ masks is how he'd be fighting. They're a sack of threads, and i doubt they'd get parralyzed.
out of his body canonically go straight to his aid, ignoring everything. Using their elemental jutsu while Kakuzu is "dead" is not canonically supported, and even if it was, it is still risking damaging Kakuzu even further.
I mean them attacking at the real Kakashi while Kakuzu is parallyzed, not after Kakashi already Killed him, in the time gap where the lightining clone paralyzes Kakuzu and the real Kakashi comes to kill him.
Earth Grudge Fear Kakuzu still got feinted by Bunshins. I don't see how Kakashi and Bunshins couldn't handle it, especially being faster and smarter then that version of Naruto.
But this would be a stronger version of Kakuzu, having 2 more masks to begin with, he can cover every single of his flanks.
Two Raiton Bunshins, using Raikiri chain should get the job done, while the real Kakashi approaches his back side. Again, I'm not saying this is a definite win for Kakashi. Simply, it is certainly debatable.
I'm replying to you, aren't I? Lol.
I don't consider my arguments lame when it comes to Kakuzu, specially comparing them to some bullshit some other supporters can reach.
I see your point about this matchup, but i don't see most of those tactics somply working against a kakuzu in a better condition than the one Kakashi fought, and with Hidan around.