The main point of the Blue Mage is the Masked Carnivale.

There's somewhat of a puzzle element to it, specifically due to the limited selection of spells...


What the Blue Mage does need though is more learnable spells, as the selection is retardedly limited on certain elements... Like currently only Wind spells are Feather Rain from Garuda, and Snort from Typhon. And Snort doesn't even do damage.