Strange that you entered a tournament and don't know much about all the other characters.I at least know how to play with each individual characters but mainly focus on Marth and Peach.My number one stunna is Peach well usually I would telly ou is something to do wit her hover and ground attack but I believe any other SSBM expert would know whats next to do especially those entering tournaments.Well I would give a defense style play with marth but not quite easy to do.,So I will leave that out.