Not sure how that relates to an Int encouraged fighter? Unless you think it could be readily reflavored in some fashion?One of the artificer subclass is a bit like the hexblade, but with Int...
(edit, I should mention that's in 5e)
I am actually thinking justifying a decent secondary Intelligence is the target . And having it feel like the highly defended analytical kind of scary Thibault fencer. Where analysis of battlefield pattern and steadfast discipline is seen as key perhaps more than nimble movement.