Lots of useful info, thanks! One thing though, Max Sacred has higher base damage than FMB, and unless I've been doing it wrong (highly possible), I've only been able to hit 3 times at most even at lvls 2+ :O, so I'd think wave would be more damage?
As for Holy Spirit's usefulness, I think it's mainly the cool down and the ability to hit most large things 5 times that makes it appealing. Plus, it's flexible. I tend to cast Holy spirit, and immediately follow it up with another spell when against non-comboable enemies and bosses.
Aurum211: Myth Healer 7th RB (350% exp rate RAWR)
Gummygumdrop: Myth Lime 4th RB (on leave for now...)
Mabinogi IGN: Zinc210: total lvl 7xx