Sorry SE, but endgame won't work if you don't fix something.

[Kalandros]

The only thing that sucks about this game's "end game" is grinding the same shitty dungeon 8 times a week for a few months. Get rid of that shit and the stupid cap on myth tomes.

Odd. I barely need to even run AK once a week to get Myth cap'd.

150 from Turn 1-4, a couple primals here and there (for gil of course).
Myth cap is required or you'd just grind "the same shitty dungeon" until you're full LV90 gear and then what? Then you blow through Coil not how it was intended? You blow through Crystal Tower as soon as its out?

You make unrealistic demands.