I have used Wolf, and I have used Sonic. But never have I used them against each other. Lol. Get ready for a very uninformed, crackpot rundown of the Sonic : Wolf MU!
I'd say Sonic has to be constantly applying pressure so that Wolf can't safely fire blasters, or at least make him think he can't fire blasters. This should be step one in fighting Wolf as any character of you ask me, unless you can sit back and put out more damage/maintain more control, etc. Sonic is fast, so we have a good outlook for dealing with lasers. The reason Wolf fires blasters is for stage control/force shielding/hit confirms, and while these three outcomes are good in general, I find that they're more effective against a character like Sonic who thrives on stage control (he loses IMO once you lose it), is weak in shield and obviously isn't good while getting juggled.
Fortunately, anything Wolf does other than that (mostly) we can avoid and punish on reaction. I've decided that I'm going to start valuing the potential of Sonic's defensive options more like somersault/spin charge away and I think this comes into play a lot here. Wolf's aerials are good and all, but he's not like Fox or Falco in the sense that he has an aerial with high priority and quick start up. He'll go for a fair maybe, but that has slow start up. Nair doesn't have a large hit box and going for dairs is hard to land on Sonic. Probably most have to watch out for retreating bairs, which are quick to come out/are harder to punish on whiff (fading out and better frame data and range). If you give them too much respect he can run back and set up some more lasers, which is obviously a problem. If he does start firing lasers, you can force mixups with your reaction to them but really they're not that good. Most Wolfs (would it still be wolves in this case?) fire short hop lasers so full hop dair can circumvent this unless he has a platform over his head. Then his defense his pretty strong :v.
does 2 would be punishing him on any one of these attacks he's forced to throw out (I say forced because against anyone dash dance camping, you have to use a move to avoid being hit). Optimally, we should be getting a grab at low percents since he's a spacie and CC shine can wreck anything else we do really. I'd go for dthrow since with good DI I'd assume he can escape it like Fox can. Although,
Star ☆
does the weak fair into edge guard setup work on Wolf?
However, it's possible to wrack up percent other ways, and any way you can you take. Just please don't go around dash attacking or only shffling aerials xD. Edge guarding Wolf is pretty easy, except if he's going for Flash to ledge, but even then it has limited utility off stage (one effective angle for recovering purposes) and is super punishable if he lands on stage. It's at least 20 frames landing lag. Wolf ends up having to recover low a lot on account of being a fast faller. This means that, of course, grbabing ledge is super good. It also means that fair/dropzone nair/dair edgeguard, or even bair or jump out -> down b towards stage on top of his head is an instant kill. If you see him start up b at a point where he can't sweet spot ledge (be mindful he can ride the wall though) then you can use a cute fsmash, dsmash, or ftilt to finish him off. Stylin'.
So what happens if you get hit? Wolf's moves are really hard to explain in a post, since they often flow into each other depending on your DI/at which point in the move duration/hitbox-wise he hit you with. But I can give you a few tips. If he shffl nairs you, it can lead into a shine or nothing if he overshoots you. With some clever DI/SDI you can end up on the back of him and this opens up a punish opportunity for you. Always look out for when he drops a combo. It happens. Shine DI: at low percents hopefully you can CC grab or dsmash, but when you get worked out of that percent it's a good idea to DI away from Wolf. This'll make follow-ups harder and will maybe reset you to neutral, which sucks because he'll fire lasers but is obviously better than being combo'd. At higher percents, DI in maybe? Haven't been Wolfed before but it's not a good idea to set yourself up for a Flash kill. Maybe Sonic's floaty enough such that at higher percents even stuff like shine uair/fair/bair is really hard to connect. If he's hitting you offstage with shine, it might be possible to SDI through him and be sent on stage. Otherwise I'd recommend DIing away and avoiding the bair/tipper fair. Those are deadly. That's all I'm going to say for now I guess. Hopefully this helped someone.