Battle mage guide

Pretty much any level if you hit high enough.

if this is the case then I must be very weak. I am lvl 60 and 1% of my dmg != 10% of my hp.

Edit 1: Just hit 70 and still have not decided to get more than 1% drain. The good thing is resistance class does not required all SPs to be used before Job Advancement so I keep my options opened by leaving drain at lvl 3 and booster at 14 (6 SP unused).

Edit 2: To answer my own post above, in early 7x, 1% of my dmg was equal to my base hp.