I, personally, have magic blow at level 1. Eversince I had it, I`ve only seen less than 10 critical hits.
Magic blow for Eirs are not as effective as it is for Criticals for other characters. So if you really want to be a damage dealer, that point can just go to Moon Pieces, IMHO.
Although Blessed Bravery is a tempting skill, it`s not as useful as it sounds. It ONLY adds to melee damage (and is best used for long-thread-melee-ers); it doesn`t add to spells. Also, most people (especially knights) do not really appreciate it because they can`t override it with their own Magic Defence (which is mostly at level 3). Unless your Attack buff is level 3, it can`t be cancelled, ergo, pissing a lot of them out there.
FMB, as a major damage spell, is not worth the 6 points you originally had on it. Tears and HS are already knockdown skills, not to mention they deal a lot of damage being able to hit more than 3 times -- compared to bullet. Also, FMB is VERY unpredictable and has looooong cooldown.
LoP is good for cancel and PvP. Same as for Light Shield.
E-heal is an important spell. If you`re a battle eir, rather have it and efficiently use it so that you wouldn`t need to use ressurection.