GnawingJackal

Why is it always ninja? There are loads on xianxia stories about someone transmigrating in to the body of a prince and cultivating. Doing a kingdom building Naruto fanfic where the main character gets involved in made up national politics, releases modern knowledge and inventions, and hires ninja tutors so he can get strong enough to survive the consequential assassination attempt would make a good story wouldn't it? I've never found one though..

I love the upbeat spin-doctor vibe

Well, worked metal used to be very expensive, armor excessively so. The logic as it is written here is a bit wooly, but armor can be presumed to be a honking great status symbol in primitive times

Ehh~ I think the authors trying to conjure the image of a huge surge of energy splitting the sky like in an anime where it zooms waaay out and you have to see the whole world to see the full effect of an attack

If I were writing this story that ghost would have been 'brought to nirvana' by a thousand passionate thrusts of my sword.

The strongest power manifestation occured when rage and serenity were in balance. What does that even mean though? Pretty sounding nonsense.

stringy -> stringent

Someone in another fanfic totally over analyzed those words and said they were an oblique reference to how if you are a student currently without knowledge (a nitwit) you should not be content with the way things are (blubber), try something new (oddment), then reflect upon what worked and learn from it (tweak).

She rescued Iruka, cast a genjutsu, then was somehow in front of the shiruken to redirect it? Did Sakura learn to teleport in that month of training and you just forgot to mention it?

The author forgot to give his main character any character.