Next BLU update, please increase the number of active action slots.

[Anahlise_Auhn_Giinslai]

Personally I think Libra needs a more generic vulnerability replacement effect so that we can shave 2 buttons and actually have some room for utility actions on DPS. Being able to hybridize is also one of the few aspects of the job I liked pre-70.

Condensed Libra just needs a fail-safe. Some thing like the Blue Mage can not apply any one of the three Libra-type again, for the next 10 seconds after its application, which would make to fish for a certain one only as bad as up to a maximum fails of two, while also not have a negative side-effect on re-application, since the debuffs have a 30 second duration.

I think a minor defensive cooldown that could be used on allies and get a boost based on your role would add a lot.

You could just join the rest of us Blue Mages, that this concerns, on the demands for CactGuard improvement BandWagon. CactGuard could be very good, if the Dev Team would just do some thing with it, as it needs a fix, improvement, or even a full rework... Here is my own CactGuard re-design idea, from one of my threads:

My suggestions are fourfold. #1 / at least remove a big issue.. make it possible to cast on self. This alone would be a notice-able improvement that CactGuard needs. #2 / increase its base effect from 5% for 6 seconds, to 10% for 6 seconds. #3 increase its Aetherial Mimicry: Tank boost from 15% for 6 seconds, to 20% for 10 seconds.
and #4, a personal idea that I would love to see done with CactGuard. make it the first ever spell to have two different Aetherial Mimicry bonuses. I would love it if CactGuard had a Aetherial Mimicry: Healer bonus that completely changes its effect. My suggestion is "Additional Effect: CactGuard instead creates a barrier around self or the target that absorbs damage equivalent to a heal of 400 potency, when you are under the effect of Aetherial Mimicry: Healer. Duration: 30s. Effect can not be stacked with Scholar's Galvanize or Astrologian's Nocturnal Field."

for Blue Mage Healers, this would make CactGuard a barrier spell like GobSkin, but CactGuard would be single-target instead, and stronger than GobSkin,
to make up for it.
in the case that these ideas of mine would make CactGuard "too good", then for the sake of argument, and for balance, also double the MP cost of CactGuard from 200 to 400, give the Aetherial Mimicry: Tank effect a recast time of 30 seconds, the same recast time as Chelonian Gate and The Rose of Destruction, and give the Aetherial Mimicry: Healer effect a recast time of 15 seconds.

Adding some kind of MP management tool other than Blood Drain would also be helpful on tanks in particular.

We already have Lucid Dreaming and Magic Hammer, but I can comprehend what you mean... Would you rather suggest another spam-able spell, similar to Blood Drain, or a Spell with a CD, that could be similar to either Magic Hammer or Lucid Dreaming? either would work, for a purpose of MP restoration. alternative suggestion, could also just make Blood Drain and Magic Hammer restore more MP than what they already do.