Flair is actually more similar to monk abilities, at least the way Final Fantasy has placed them. I'm pretty sure Chakra is the proper translation of Sabin's third ability in FFVI (I can't remember what Woolsey (mis)translated it as). And Sabin was DEFINITELY a monk.

Amarant has a few ninja-like characteristics, but then, the boundaries between ninjas and monks are kind of blurred in the Final Fantasy series anyway, since some of what belongs to monks in one game belongs to ninjas in another, and vice versa.