What are you complaining about exactly ?
What's the point with scholar having "brainless skills" ?

Mana management has never been related to a "strategy". It's knowing what spells using at what time to don't consume all your mp.
Lucid dreaming is shroud of saint, you hit it at a certain time when you're MP dropped to ~ 80% or something.

I don't understand what you are trying to say exactly.

If you are only doing dungeons then you probably don't know what mana management truly is.