Protego

This spell will act as a shield or magical bubble of protection against whatever you specify in your mind when casting it. Be sure to wave your wand clockwise or draw a magic circle on the ground with using the wand going clockwise. As you cast it visualize a mirror like shield or bubble around you that deflects negativity and offensive magic aimed at you.It could also protect against yourself making bad decisions or being influenced negatively 

Protego Totallum

This spell works similarly to Protego, but is typically cast over an area or location

Salvio Hexia

This spell will act as a barrier for any negativity or offensive magic similar to Protego, but focuses solely on repelling dark magic that may be cast at you (or a location) and is much stronger than Protego alone. Protego can be used for other things which makes it useful however THIS spell shold also be mastered especially if you are doing a circle around a location

Repello Inimicum

This spell repels enemies or any mentally specified target. It creates a kind of barrier that when they approach they will have overwhelming urges to not go further. If they ignore these feelings and do press on the spell will then hex them with a mentally specified hex of your choosing or design.