Quote Originally Posted by Kabooa View Post
A bit of inspiration from Arcane Mage back in the BC/Lich King days in WoW. That spec of Mage was all about MP management to maximize damage.
Haha, that's exactly what I was thinking of. In this case I'd recommend it be a more core and unavoidable emphasis, is all, rather than given through an avoidable (i.e. Mastery) stat.

It's actually still really fun even in Legion, btw, at least with the recommended legendaries. And it's changed the least of all the Mage specs, imo, probably for good reason.