Add Blue Mages Already

[Seraphor]

I am sure we could come up with a fun and interesting lore reason, for why BLU spells are all instant cast or extremely short cast compared to other mages.

There's already some lore that could fit an original interpretation of a blue mage, and work for a tank.

Magitek.

Garleans magitek is basically the repurposing and replication the powers of primals and beastkin.
Think Ultima Weapon using the essences of Ifrit, Titan and Garuda but on a smaller scale.

Utilising a kind of magitek force field that absorbs damage and converts in into aether, can translate hits taken into magic.
Blue flavoured magic.

Could also explain it being a mage in heavy armour and not requiring cast times, because it's magitek and not incantations and whatnot.