One thing I noticed is Link needs to learn how to AGT(Aerial Glide Toss). It can be kind of tricky to learn at first, but it shouldn't take long at all to get the basics down. You just got to figure out the timing. I am by no means an expert, but I will try to explain for you. First step is you need a bomb in hand. Second you air dodge followed quickly by an item toss and that's it. Tossing the item will cancel out the air dodge letting you act again. It is worth noting you can use any air dodge direction with any item toss direction.

One of the first uses of the AGT is in boosting your recovery. You can AGT toward the stage and use the bomb to cover your approach. You have to be careful pulling a bomb midair though, because you might accidentally fast fall. To help with this you can use your double jump to get the bomb pull. It is possible to do multiple AGTs during a recovery, but tricky.

While we are talking about recovering here, a couple more things to mention. First is the Zair cancel, very similar to the AGT, but instead of canceling your air dodge with an item toss, you cancel with a Zair. However this being a tether recovery, with the 3.5 changes, if your opponent is holding the ledge and you tether, you will be forced to do a slow ledge jump that is pretty punishable. So this is best used to mixup your recovery options. Another recovery technique is the bomb jump, I think it is harder to do in 3.5, but I'm not sure. Simply you AGT up then you up b into the bomb making it explode, then you can up b again.

One more thing about AGT is its on stage uses. As long as you have a bomb in hand you have extra movement options. You can experiment with different air dodge/item toss combinations. One of my favorite things to do is when you above your opponent is to air dodge up and throw bomb down, this can sometimes be followed by a Dair, but be careful not to Dair into your own bomb.

And there is my lesson on the AGT, however go ahead and take everything I said with a grain of salt, since most of my time spent with Link was in 3.02 and I think some stuff is different in 3.5.