Chaosmancer
Legend
I don’t think your subclass argument here is convincing.
Why not? The argument people are making is that the fighter is a mundane class with no supernatural powers whatsoever. Yet it has 5 to 6 supernatural subclasses. How did we justify those subclasses? Because the subclasses themselves supposedly offered justification for their abilities.
Yet we want to add new supernatural/extraordinary/magical abilities and we need to justify why the fighter can do supernatural things at high levels before we are allowed to do so. Why? Did the fighter class need to justify the possibility of fighters being able to learn supernatural abilities before the Arcane Archer was allowed to be a subclass? And if it did so... why do we need to justify it AGAIN.
We demand both current and future abilities not contradict the fluff of what a fighter is/is not.
That’s a lot of leeway. But it doesn’t mean literally anything goes.
Okay. We don't want literally anything. We want superhuman strength, speed, and durability. Possibly a little energy manipulation or directed energy attacks. That is such a measly, small thing compared to "literally anything"