Short/fast review
Do you like your logic in your anime? Well there are none in this one. Till about episode 8 with out picking small logic problems, you can still watch this anime using your brain. But wait till you reach point when everything starts happening at random. Then you need to turn of your brain and don't even try to understand what is going on, why and how. Even ignoring all music/magic rules (if there was any), everything else made no sense. Its like 10 people came in one room and tried to put everything they could think about plot and put it in on place. And i mean everything: friendship, hatred,courage, fear, trust,betray, you name it. And in one episode? Why not!
Main character reminded son goku from DBZ (not smart and strait forward) Kinda rare pick for main character, but it was refreshing. others were there just for being.
Strong point of this anime would be music side, if you like rock music. There were few good songs, so it was possible to stand watching it till the end.
I won't recommend it for nobody, save your time and do/watch something/ anything better.