[quote=@Frettzo]
I'm having a bit of trouble coming up with a character--I'm thinking an old, wise man a la Dumbledore but less OP and a bit more cynical. But I'm not that versed in spells. Is there a wiki with a list of spells that I can refer to? 
[/quote]

[url]http://harrypotter.wikia.com/wiki/List_of_spells[/url]

But a wise and talented wizard can be creative with spells, to the point of inventing them if you want. So you'd have a lot of flex most likely.