My friend is just a bit better than me with all of his mains (except one), and he just picked up Marth, who he was boss at edge-guarding with and I would barely win, but it would always be close.
When he started playing Marth at the beginning of the day I instantly caught on to his habits. He would get too greedy, meaning a footstool could end a stock just like that, and a lot more predictable things.
Anyways, it was me and my 3 friends, and when it gets to a 1v2, the 1 player 1v1s the other guys one at a time. Basically it turned out to just be me and him after I beat his teammate. He had 1 stock and I did too, just I had 50%. We were on battlefield.
We started and I instantly started wooping his ass with my man Kirby. D-air to 5 consecutive U-tilts, to an u-air, land on platform with him, and a F-smash on the platform. Now he had about 60%, and we kept duking it out. Now he was at 95% and I was at about 80%. I grabbed him by the ledge, did 5 pummels, and did a B-throw so he was offstage. Here comes the hardest read of my life.
Right after I threw him, I jumped backwards after him, going for the bair. I read the counter. I predicted it, and just let him do it. He actually did it. Right when the counter ended I did my bair and ended the match. I went insane, and said "DUDE THAT WAS EPIC" and all my friends agreed, but him being the douche he is, said "I challenge you to a 1v1" over and over not accepting defeat. I did and I lost (friggin Sanic match-up sucks) and after he won it took 10 minutes of talking to FINALLY accept my perfect read.