Expedition: general discussions.

Aretz, for example, tried to create an overpowered hybrid of Darien. Instead, he ended up with a weak buffer who pierces allies with spears.

Because when you need to level up physical and magical stats separately, nothing else can come out. When every stat is useful for both mages and warriors, the picture is the opposite. For understanding: imagine that Darien has all stats twice as high. Viable?
The ramp-up isn't particularly long either, by the way, because of the action point system. That is, if you don't engage in useless or marginally useful actions, you lose... well, half a round.