Quote Originally Posted by Seraphor View Post
Of course it wouldn't learn abilities by getting hit.
The best way to translate this to ffxiv however is by giving BLU a job mechanic where getting hit fills a job gauge that allows them to use their blue magic spells.
Which would only work as a tank.
This is probably the more lore-friendly way I've ever seen suggested to adding Blue Mage into the game while still allowing it to fit into the holy trinity of role types. Based on skill bloat alone there's not way the blue mage in this game would learn its skills from being hit by enemies (or by using lancet, or by eating them or their.... leavings, or by seeing their attacks) but if you charged up your blue magic from taking hits to unleash powerful spells, then you're onto something. This kind of system already has somewhat of a basis in the ninki gauge on ninja (charges on auto attacks) and the kenki gauge on samurai (charges on weapon skills) so charging one when you take damage would definitely be interesting.