"Fighters* aren't your typical soldiers or guard. They have a destiny. Some gain this destiny at birth as the scions of dragon, giants or gods. Others forge their own destiny mastering esoteric forces like psionics, rune magic or spirit. As a fighter travels in the world, they unlock more of their destiny, making them capable of supernatural feats that bards sing of. Eventually, their master the source of their destiny and unlock powers to rival the mightiest magic.
While a fighter's destiny is often discovered early, it does not mean their fate is foretold. The battlefields of history are littered with fighters who were unable to fulfill their destiny, and some of the greatest villains in history are those who discovered their destiny was far different than they believed. Ultimately a fighter's story is not written in stone, they merely have the tools necessary to carve it out."
*Even the name is boring. Paragon, Warrior, something.
That has sizzle! What's your destiny? Dragon samurai? Rune knight? Psi-warrior? Titan-born? What's your powers? Flying and breathing fire? Enchanting your weapons, armor and body with mystic runes? Telekinesis and psychometabolics? The raw strength and stamina of the Gods? There are plenty of options for expansion too: echo knights and durnamancy, inheritors and legacy weapons, Incarnates and chakras, the possibilities are endless.
And you only what this will cost? The Champion. The boring, nonmagical fighter who is defined by a fighting style and some hit points. No powers, no origin, no destiny. Slightly more interesting than an NPC. That's what you lose: the everyman. But you're already comfortable with killing him: at 10th+ level you already want him doing things beyond mortal limitations. And so do I. I just want him doing them a.) Sooner than 10th and b.) With a narrative reason.
We both want more interesting fighters. We're arguing lore justification. You could convince me and Micah with one compromise. Isn't that worth it?