lol. Dont take everything this guy says too seriously. I play decently with link, you dont have to take my word for it and take a look at my matches for urself (in sig). I dont even use all that many "ATs." You can pick an choose which to use based on how you play. If u watch my link u can see how much i just love to use bombs. And yet i use no bomb ATs. Would it help, maybe, maybe not. But im not one to love to use ATs.
My advice to use is to practice on spacing with link. While toon links projectiles are generally better, links sword is much longer then toon links, so if u position urself correctly, ull be able to hit him but he wont be able to hit u. Most toon links also seem to like to be in the air. Start using more zair while u retreat from his nair or bair assaults. I also found links grab to be really good. Out of all the characters i play, i use links grab the most. Its decently fast and has good range.
It would be best to master the knowledge of link, before u get too deep into his ATs. Im not saying u dont play link good its just ur lacking in one of links majors strengths. His projectile game. While yes you do use them. There doesn't seem to be any strategy behind it. You just throw it straight at him. No mind games, not even any projectile combos. Your projectiles should be making him look around the screen to make sure nothings going to hit him. Dividing up his attention from not only u, to everything else. And since toon link is soo fast, your projectile mind games can be used to slow him down to links pace. Stop just attacking him head on, and start using ur projectiles to push him into places he doesnt want to be in.
A few ATs u would benefit from learning are like. Pivot boost/smooth boots, arrow canceling, and bomb zair. Stuff like DAC can be a nice little approach and help with combos in certain point. But the complex button commands take a bit to get use to and just because u may be able to do it at will. Doesnt mean ull will be doing it at the right time. So learn Link first, before u learn his ATS.
I could go into it more if u wanted to. But just to let you know i play more of a mid range Link.
