Interesting idea, and something that could fit with southern Ilsabard, given the Unyielding Blade sword style being taught in Corvos/Locus Amoenus. The main difficulty is that we have a lot of melee as it is, and a lot of sword jobs at that. Zidane-style double-bladed swords haven't been done yet, though, if you're going for multi-hit attacks, and you could put them under Scouting if you're opting for a more agile fighting style.

You're sitting at roughly the action budget, but I didn't see anything along the lines of mobility tools, unless I've missed it. That's the very first thing that I'm interested in when playing melee/tank jobs. Could we have a roll? A personal speed boost? Some combination of the two? Is there an Ivalice-themed gap closer that you could implement that feels different from what we currently have?