Just in case you guys still need help:
@Akamaru:I've always gone to do the Phantom School MQ at lv45+
You just hit and run the WHOLE TIME. It usually takes like...5-10 minutes.
@Shiawase: Eventually, all magic types get AR. It's a trademark. I find that using MR in the higher levels (200+) is really nice, though. Since there's practically no cast time and it's just as strong as AR due to your high MA/Equips
It's fine if you're a wind/earth sheepie even if you have AR instead of MR. The only earth attack that really needs MR is summon boulder, if i'm not mistaken. And that's a fail
Hope this helps