Finally digested the other three, superb job with them all.

For Scholar, the only thing I find some issue is the button limit. It is reaching the upper limit of what a controller player can reasonably place on the hotbars. The strength of the Scholar is that they can mix and match their mitigations to the exact scenario at hand, so I don't know how to cut buttons there. The other thing is it is a bit wordy but that much is given as you're writing for every possible situation. Secondly, I believe Scholar is strong enough as it is, making them stronger doesn't sit well with me... For the Strategies, how do you plan to show them? Through a gauge or having it as a buff on Scholar itself? The fairy somewhat gives away so maybe having 3 forms (Lily/Eos/Selene) could also work

For Astrologian, I am mixed on the card system. I like that it is more unique, but I don't like that it is random. If this type of system is to be implemented, high potency attacks on other jobs needs to change. Maybe a way to "save" a card would be good. I would change redraw so that it switches the positions of the front and back slots so that you can save a card you want like Bole for a repeated TB or get rid of Arrow on the back first as you might have Spire with Empower planned for 20 seconds later becuase your summoner is getting back to their Bahamut again.

Now for Sage, my main. The job I used to prog last tier. And it is a really interesting design. But not a design I wish to see on a healer. I like the idea of consuming MP to augment your most important ability, but I think having that sort of MP management would be better for a non-caster job. If multiple non-caster jobs used MP like that MP regeneration buffs can be given to more supportive jobs. Anyways, back to the Sage. This version is even better at keeping things under control at the expense of having lesser "I need big healing, NOW". I'm not a huge fan of the Zoe you proposed. Because how current Zoe interacts with Pneuma and your shields it is a really great panic button or a way to replenish the party's HP/Shields quickly in repeated big hits. Second Opinion + Pepsis handles the healing part but shielding suffers greatly from it. And with Neuralgia and Myasthenia added players wouldn't need to worry about double weaving that much. I think making Zoe stay as it is (maybe even add a guaranteed Crit on top of it to match recitation) and make Krasis' functionality change to Zoe's would be a nice change or making Soma consume all Zoe charges to apply the Zoe shields with it as well would be nice too if you want to keep it as an augment. And finally for the gauge. Because of how you put the other augments Toxicon also looks like it augments your Kardia like others. Maybe putting the Toxicon stakcs below the Addersting could work?

Again, superb ideas. The parts are I'm criticizing are more or less nitpicking compared to everything that I liked about it.