The worst plot device in the show
It’s so dumb that Kishimoto had a genuinely interesting story and good power system, just to make it a debate of who has the most Hashirama cells. Like yeah, Hashirama is build different, I fucking get it. That doesn’t mean that they would be able to fix literally anything, and all that came from making his dna as good as it is made an even bigger plot hole: how the FUCK did he die?
“You’re going blind from your Mangekyo Sharingan and it’s possible that even the Byakugo seal can’t fix it? HASHIRAMA CELLS WILL LET YOU SPAM THAT SHIT LIKE IT’S AN EMS!”
“You’re some random ass Chunin that was LITERALLY half dead because you were crushed by a rock? HASHIRAMA CELLS WILL NOT ONLY GET YOU BACK TO NORMAL, BUT ALSO MAKE YOU FUCKIN KAGE LEVEL!” (I realize that Madara’s training also played a role in the Kage level thing but holy hell)
If Hashirama cells were that fuckin powerful, then it’s probably the fact that he’s the reincarnation of basically god, right? WRONG, because the main character is also the reincarnation of the SAME god, and doesn’t have the inhuman healing factor that allows for you to survive half of your body being turned into mashed potatoes, at least not without his pet Fox. This means that HASHIRAMA ALONE has these cells for some reason. Why is that? I would get it if he was somehow born with 6 paths chakra, but I know damn well he wasn’t.