Agree, and that's why if you got slashed by Metaknight's tornado, you have to jump while in the air.
More than 2 times about banning Metaknight, because I said it twice that Metaknight should not be banned in two different threads about banning Metaknight.
Don't make me report your post, I don't want to be depressed by some members.
So anyways, when I play 'Super Smash Bros Brawl', I test 5 characters that I test against Metaknight(on lvl.9 CPU): Ike, Fox, Mario, Marth, and Falco.
First test I play as Ike, and I can do a clever trick against Metaknight and I got him knockdown. Second test I play as Fox, but I did okay with Fox, and I was a little but close to get knockdown with 1 stock, and I defeated Metaknight. Third test I play as Mario, but is sad for me to defeat Metaknight, until I can counter if I pressed the A button three times, and it's a lost for me by Metaknight. Fourth test I play as Marth, and I really got down with 1 stock while Metaknight was the first one that has 1 stock left, so I defeat Metaknight finally without myself falling from the glacier(where the glacier is running on water). Then the fifth test I play as Falco, and Falco's move was very different from the Melee version, because I can deal a heavy damage to Metaknight while pressing the A button rapidly, and is a failure for me to beat Metaknight.
Now as you can see what I did by testing against Metaknight is 3 out of 5 character that I test was a success. That means for Mario and Falco that I've test against Metaknight, I shall have to work on techniques and tricks with Mario and Falco because I test Ike, Fox, and Marth against Metaknight and it was a success.
So there you go, if I faced off against the online players or the players who played as Metaknight, it depends how well did they play, either I lose in the game, or I would win. And for some high-level players who've been to the tournament before should know how to defeat some high-level players who played as Metaknight in the tournament, and it depends who will win and how would they escape from players spamming the B button to do Tornado Slash again and again.