Thank you I will make the word change to Sectumsempra, and Animagi feat, thanks for the help.
I think this is just design differences, as I would prefer to have levels 1-20. Would you still be willing to help however, as it stays classic 1-20? Also, I think teleport is fairly reasonable level to do. In dnd teleport is available at the earliest at 10th level. In Harry Potter most students will gain access to it at 6-7th level. However, it is more balanced as students can not travel nearly as far safely. I plan on writing Apparate soonish. Also, what would you be interested in working on?
I agree that most of the wizards in harry potter don't seem to specialize, at least not until after high school. In this case I think it can be justified. In the harry potter universe there have been less then 10 Animagi in the past 100 years. Therefore, I think it should be fairly difficult to do.