Iago's Plan

I cannot understand Shakespeare, so when I read this passage I utilized the website wikipedia to help me understand what was going on. I accidentally read the end of the story about Othello and Desdemona, which was kind of annoying. But it stated that Iago's first plan was to instigate a drunken brawl. This was explicit, so I would assume the brawl would be between Othello and Roderigo because of the long back and forth between Iago and he and also because during this exchange Iago is duplicitous enough to take or give, I'm not sure, money from Roderigo or to him. Iago seems too smart for Roderigo and I'm sure he fell for Iago's tricks. I am not sure that this plan shall work because Othello is quite a hero and will most likely be able to eloquate his way out of the ordeal, but even if Oago doesn't succeed at this I know he will eventually succeed at bringing down Othello. Even if I didn't see the ending on wikipedia, I would assume that he would end up losing in this play because it is shakespeare and nothing ever ends happily. hearing the author's name is a spoiler because after we heard it we knew how this story would end.