After healing T8, I feel that critical isn't very helpful even for scholar?

[Menae]

Speed is terrible because it has a horrible conversion rate and doesn't benefit your fairy, whereas Crit and Det both benefit your fairy. PIE doesn't benefit your fairy either, which is why it's generally considered to be worse, but I like it because it means more Adloq spam, which I, personally, think contributes more than Det, even if Det adds to your fairy as well.

Well, that and Aetherflow. Aetherflow magnifies the effects of the Piety you do have, meaning you don't need as much to get to sustainable levels of mp. That said, you might be onto something by using piety; for every 100 extra mp they start with, a scholar gets 700 extra mp to use over the course of a ten minute fight (100 starting mp, 400 from natural regen, 200 from 10x Aetherflow). That's a little over four physicks turned into adlos (or most of a resurrection), for the cost of 13 piety's worth of stats.

WHM get 500 mp over the course of a ten minute fight for every 100 mp they start with, since Shroud doesn't scale, sadly.