Actually, I used to main toon link and i currently second GaW so heres a few things you should add.
Toon Link: dont use any highly punishable moves(Usmash comes to mind) since TL can easily do an annoying 23 or so % with a single Fsmash.
TL can pull off 2 Bairs in one shorthop so be prepared for them trying to string combos together with that move.
*IMPORTANT* by simply standing still, TL can block ANY level aura sphere.
Use zair to catch his bombs and dodge at the same time.
Be prepared for some jump canceled bomb throws(or w.e theyre called)
If he attempts to spike you, dont panick(its what they're counting on) and just dodge their Dair, theyll plummet to their doom =P.
Also on the obvious side , at certain stages its harder to see their projectiles because of the background.
Finally, ALL TL users have a favourite projectile(bomb is most common i think) so learn how to avoid them(or catch them) and punish before they recover.
Game and Watch: Turtles.TURTLES! Their Bair is considered by many their BEST arial move. It has high priority,almost no lag,hits multiple times and has some nice knockback.Those are all the good things about it.The bad, you ask? Well, for starters, basically its a free double team and its so easy to see coming since its the most used approach in the GaW community since it blocks almost all projectiles.If you do use double team but he dosnt use his turtle and you're wide open, if he uses the turtle, DI to behind GaW(or infront if hes DIing backwards) and the last hit with high knockback wont hit you.
Also, his Fair is a high knockback move with nice priority wich you might want to avoid since it K.O.s at around 120% i think.Dodge and punish, it has landing lag(not terrible, but enough to be punished).
GaW's Uair makes you float higher so if he's below you, dont jump because i've seen many a character star K.O.ed this way. The one way to dodge it(the COMs helped me see this) is to arial dodge.Beware of the second hit of the puff thingy though because it has nice knockback, but im pretty sure you can Dair through it.
His Dair(THE KEY *GASP*) has high priority and almost no landing lag, the GaW player can DI to move it left or right somewhat, it spikes (only right when it comes out though) and finally, GaW can press down on the control stick to slow the speed of the descent into the speed of a fastfall so its safer for them to use over the edge.Solution? dont get below them, if you do then just powershield it(or spotdodge if you cant powershield) and punish with a Ftilt or anything you see fit.
Their Dthrow is easily techchased into a Dsmash(very hard to pull off against lucario though*YAY*)
so be carefull of that.
Finally, shieldgrab his smashes since they all have lag (not Dsmash though) and watch out for his Ftilt(chair) and Dtilt(manhole or something) since they have priority over your tilts.
*important* If he gets you with 2 or more #9 hammers, its probably just your off-day so dont feel bad
Correct me if i'm wrong about any of this stuff