BLU QoL and future additions you would like

[RyuDragnier]

More tanking abilities for those who tank. Right now it's pretty barebones, and you take a lot of damage as a BLU tank. Some tanking abilities that reduce damage by a percentage for so many seconds would be good, especially multiples of them. Healing, I really only want to see an AoE regen at some points, since our AoE medica already removes a status ailment. DPS wise, more combo actions like the Black and White Knight skills (which are nice to combo).

[Xiomara]

Put an extra 0 on the end of every spell potency, this job was supposed to be a broken OP mess. So, lets actual have it break things.

[Flay_wind]

Mimicry not requiring a target and being able to cycle between the 3 of them a la Monk's Form Shift. Maybe not in combat, tho.
Loom and Cactguard changed to instacast spells. Cactguard being able to be cast on self.
While under Tank Mimicry Mighty Guard has reduced damage penalty to say 30% and gain additional effect of increasing max health by 20%.
Everything else is more or less fine.

[Silver-Strider]

For Tank, definitely more mitigation in some way that doesn't lock you in place. Also, faster Enmity generating skills. Something like Ice Spikes gaining an additional effect to mitigate 10% of damage during its duration under the effect of Tank Mimicry would help a lot since its pretty lackluster as it currently is. The Look/Frog Legs being made instant cast under Tank Mimicry would also be great as they're just really slow due to cast times and White Wind Spam is more effective to use than either other option. Flying Frenzy also being able to generate aggro might be nice.

For Healer, I want a regen and more range on Exuviation. A regen just because Pom Cure, while potent, doesn't really allow for much wiggle room to do anything else when the BLU tank is hemorrhaging health after every auto attack. The range increase because Exuviation has pitiful range and is just not worth it outside of the Esuna effect that is required for Masked Carnival stages. I've honestly taken it off entirely for Healing as White Wind, Pom Cure and Gobskin all do a better job than it anyway.

For QoL, I want to be able to name my Saved Spell Loadouts and for Mimicry to also save its role based on said loadout (i.e. Tank Loadout with Saved Tank Mimicry already to go instead of having to find a Tank to copy every time).

[KageTokage]

It desperately needs more instacast abilities in the healing/tanking department.

I think it's mostly fine on the DPS side of things though I think having a secondary resource to spend on special powerful abilities would make things more interesting.

[Nalien]

Rework the spell setting UI, so that we set "Spell 1", "Spell 2" etc. This was something I wanted back when additional actions are a thing (and they still are in PvP, where this idea also applies), but having it so we just set the blank option, then it updates on our hotbar when we slot a spell in there? That would be such a nice QoL adjustment to Blue Mage. So for example I could set "Spell 1" on my hotbar without putting a spell in that slot. I then put 1,000 Needles in that slot, my hotbar automatically updates to 1,000 Needles. I then swap 1,000 Needles out for Ice Spikes? My hotbar automatically updates to Ice Spikes. I wouldn't need to set Ice Spikes, then put it on my hotbar afterwards.

Not really a QoL addition, but more of spell addition that I see as QoL given the number of sudoku mechanics Blue Mage has, but Reraise off the final boss of Lost City of Amdapor (Hard). Give it the recast of Blues current Raise spell, and make the Raise spell a regular GCD like every other Raise spell.

Given it no longer even applies to actual tanks anymore, and Blue Mage is meant to be somewhat OP to begin with, I figure we can drop the damage reduction from Mighty Guard at this point... Maybe rework it into more of a defensive oGCD if that's too powerful, and simply have Tank Mimicry apply some more beefy native defense + enmity generation.

Loom and Cactguard changed to instacast spells.

I'd say make them oGCDs, rather than just instant GCDs. A lot of skills would be vastly improved were they oGCDs...

[Flay_wind]

I'd say make them oGCDs, rather than just instant GCDs. A lot of skills would be vastly improved were they oGCDs...

We can't have that. Because then BLU would be too OP. Oh, wait...

But jokes aside Flying Frenzy as a general gap closer would be amazing.
Actually, what would be really nice is primal spells not sharing their paired recasts. I.e. Eruption/Feather Rain can be used separately back to back.

[Nalien]

Actually, what would be really nice is primal spells not sharing their paired recasts. I.e. Eruption/Feather Rain can be used separately back to back.

Building off this;

I think it's mostly fine on the DPS side of things though I think having a secondary resource to spend on special powerful abilities would make things more interesting.

It would be really nice if Blue Mage had, lets say, an Azure Gauge, just a basic 0 to 100 gauge to spend on certain (Primal) skills. Their shared cooldown is obviously some attempt to balance them out (for a Job that's meant to have little balancing... sigh), but I think a gauge system would work so much better for that, while also making the Job somewhat more engaging to play. Can split their cooldowns and alter their effects accordingly as a result. Honestly the only pairing I remotely like is Glass Dance/Veil of the Whorl, since the effects are so vastly different. The rest are just the same damage in a different package. If it was more a case of taking something like Veil for tanking, maybe Mountain Buster for healers and slap a Stoneskin effect on party members with it too? Would be far more interesting...

[Jandor]

maybe Mountain Buster for healers and slap a Stoneskin effect on party members with it too? Would be far more interesting...

lol "here, have some stoneskin!" /throws huge pile of rocks at them.

[Berteaux_Braumegain]

As the content ages, getting full Blue Mage parties together will become exponentially more difficult which should probably see some form of nerf to do as the OP says and not restrict skill learning for players catching up to future content releases. I would say that skills should be guaranteed to drop, even undersized, as long as the party is only BLU mages to relax the full party restriction and allow people to catch up.

In all fairness, you don't need to be all Blue Mages while synced to get the 100% drop rate. If you do content synced with three other people willing do, you can still get the spells even if you go with a normal party composition.