"Attack" Spells?

I'm looking for "attack" spells, and by that I mean spells that can be used in a duel or something against an opponent. I'm thinking of maybe a spell that can force someone backwards, if that makes sense...

No...that is fantasy fiction seen in such movies as harry potter.

Im sorry but "attack" spells aren't real. You can't push someone back. Magic isn't like in the movies or books. Its not instantaneous nor can it do everything. I suggest you start to research what's real and whats not, if you are serious about learning magic. The basics are also a good place to start. I hope this has helped.