Why Do Mana Users Have To Manage Their Resource?

[Raldo]

Obviously I can't speak for ShB, but currently it's so they can't spam their heals and resses endlessly.

Good point. Though personally I'd rather they just remove the MP costs for everything except those abilities if that's the only reason why they use MP.

Assuming you still lose all your MP when you die, that means death is still a big kick in the nuts to mages, while physical jobs have no issues. If their DPS spells didn't cost any MP, then it would feel more balanced.