True. On the other hand, you can do pretty okay at damage even just sporting Summon Magic+Pierce MDef and Magic +20%, but that's more of a C7 fight and onwards thing. With a little tinkering, I could pull off Susano-os gobbling over 7k a pop (granted, needs M. Atk buffing, otherwise you're looking at 4.5k per casting). I suspect you could pull off some utterly degenerate MT ITD blitzes this way with a relatively short fallout time, and, of course, you could always Convergence summons as well, but it kind of defeats the point, since they don't unfocus. As far as my money goes, for pure passive skill building, the overall best offensive setup runs off Pierce M. Def and +20% M. Attack. Efficient, elegant and benefits both pure blitzes and status whoring (I was looking at 100% hit rates even on Death spam outside of massive resistance even at the Dimension's Hasp off DL-legal mage builds).