Equips post BB.

That would be true, if it weren't for one thing: potential. The highest level mage shoes with MA clean are lapiz sandalls, which are level 70. While you could possibly get a good amount of MA on those shoes, you could get 9% more int on a lvl 80 shoe or higher.

Same thing for the cordon. You can even scroll gloves for more MA, and 9% int>8 MA.

[IMGspoiler]http://img139.imageshack.us/img139/7020/maplestory2010100914510.png[/IMGspoiler]

Absolutely untrue. The thread title clearly states "Post BB". Every class has the same damage formula Post BB.

My calculations tell me that a good rule of thumb for Post BB damage is: It takes a little more than +4 of your primary stat to increase your damage the same as +1 Weapon/Magic Attack.
For a mage, it takes about 21 Int to equal the damage increase of 5 MA.

That varies from person to person. My int:MA ratio is closer to 3.7.