Right now, I was thinking: What is the strength of having a Magic Device as a main weapon? On the Magic skill tree, It has Bigger Aoes & longer Dots. It can also use Dancer & Minstrel skills at the same time. The problem though, any weapon that can equip Md as Sub has the same bonus. Granted, most weapons has lower matk gain from Int. Knuckles however has the same Matk. And with the Magic Warrior skill tree & Annilator, it outdamages magic devices. So I feel like Magic device on its own doesn't have any identity or skills unique to it. Nothing no other build can do better. So IMO, I think magic device either needs something similar to crusher skills with a skill tree dedicated to it. Or they could rework it to be viable.