Black Mage Sanctuary - A Guide to DPS

[Maero]

No go all spell speed and crit. You would need too much piety to actually see a difference.

As for Hasrat, swiftcast F3 is not at all the way to go, you would be better off at your level to start off with bliz 3>Fire 3> and so on. You could fit in a thunder as well.
Your F3 cast time will be fast after a Ice 3 and most of us had done so at your level.

Oh and actually for your aoe rotation if you use a thunder on a enemy at the beginning, any thundercloud procs on other targets (up to 3) are a dps gain, not a loss like some seem to think. 4 + mobs however your best bet is to stick with F2.