1. His weakness would be his weight, 2. and he falls helplessly after all his B moves. 3. And always get out of range of his downsmash and shuttle loop. 4. And learn what moves can counter his tornado. 5. And MK moves slowly through the air, so he cant chase you as fast in the air like he can on the ground.
1. This is one of his 2 only real weaknesses, but that doesnt matter because its nigh impossible to gimp him because of the 5 jumps, 2 glides and the infamous shuttle loop. so you have to make sure that he dies from the initial hit, which can also be avoided by good DI. so that kind of negates the light weight thing.
2. a. all of his b moves also knock the opponent too far away to counter attack
b. all of his b moves can also be ended right above the ground for minimal lag.
3. how many characters can realistically stay out of MK's range and mount an effective offensive, especially with his speed. you can try to stay out of his range but his dash is so fast that that task is exceedingly difficult. i would like to say it impossible, but im not one to make assumptions.
4. for most characters, the move(s) that beats tornado is so situational that its not worth trying to use. ill use sonic as an example since i know the most about him:
sonic can beat tornado with:
d-air,
f-smash
d-smash
now all the Mk needs to do is press the B button and move toward me, while i have to perfectly time and space a smash attack(seeing as the only time ill be able to try a d-air is when ive already been hit with a tornado once already) and if the MK rises the tornado correctly, it doesnt matter what i do im going to get tornadoed anyway, because the move with float right over my attack
5. im sorry, does gliding not move you through the air fast enuff? cause in the case he needs to chase you through the air, the reason that situation even arises is probably because he hit you with a shuttle loop anyway
and for the record, nobody is a counter for MK. going even or having a fair match up does not equal a counterpick
and the second true weakness that metaknight has is that his shield is GaW from melee tiny. but that will never matter because good MK's are agressive so they sheild so scarsely that they proly powersheild everything
To sum up:
do i think MK is broken, hell yes
do i think we should ban him, its still not being shown in the tourney results that he warrents a ban
it has to get worse and there have to be more MKs placing and winning more tourneys be4 we can ban him