Quote Originally Posted by Sayori View Post
rule #1 as a black mage is to NEVER stop casting, unless necessary ofcourse. Key to the job is to find a way to optimize the fight so you have to move as few as possible. This takes practice but is worth it in the end.
Rule 1) Always Be Casting
Rule 2) Learn to move in a way that enforces Rule 1 with the highest potency casts possible.

I can't stress these points enough. You can find tons of rotation guides online, but when it comes down to it they are all ineffective if you don't follow the above two rules. They are what separates a good BLM from a great BLM.