How complex is Ninja at max level?

[wereotter]

At the risk of sounding whiny; would I be able to fit all of Ninja's 90 rotation on a single 16-icon set? PS4 player here, still learning how to swap between different sets in combat - got some tips on that on my last question, so thanks for that - and I'm curious.

No. Not even counting role actions, ninja has 17 buttons you need to set up for your core rotation. I resolve this by putting Meisui on the extended hotbar since you always use it in the same 2-minute window with ten-chi-jin and mug, but you will have to figure out your own method of dealing with that one extra action as well as the additional role actions you will want to have set (true north, second wind, bloodbath, and the ninja action shade shift)

The extended hotbars should serve you fine for this (I just use the double tap R2 to get 8 extra slots) for the single target. And typically I'll set up a second 16-icon hot bar for AOE skills, since typically you only need those if you're going to run the job for roulettes.