I mean Yoshi is largely an aggressive character in 4, but then you have Brawl Yoshi who was a pretty dedicated camper. I'm sure you, as a true Yoshi enthusiast, can remember the days in which you used the following killer strategy:
Spam Egg Toss like crazy. If they start to get close, try to trap their approach with Yoshi's ridiculous pivot grab at which point you throw them away to spam more eggs (do Yoshi's grab release nonsense if the MU makes it work; hilariously this does work against MK!). If they get way too close, mash jab wildly until they're no longer close. If you're actually good with Yoshi, go for random reads with your massive reelback on fsmash to kill eventually; if you're not good with Yoshi, just spam until the time runs out which isn't as horrible as it sounds because remember this is Brawl. Just be sure you're good enough with Yoshi to throw a few hundred eggs in a row without a single accidental Egg Roll; you basically just lose if you ever Egg Roll so don't!
Like it wasn't actually good; Yoshi was "the best low tier character" because this simple strategy was effective to a point but he didn't have a ton going on if you managed to get past it and since it won really slowly good players had a lot of time to find an opening. Boy it sure was annoying, and people who didn't actually know the Yoshi match-up and thus weren't well versed in not getting hit by the eggs just got bowled over which was always hilarious. I think with Yoshi's egg bounces we've seen in Ultimate that he might be shifting back toward the more defensive side a bit, and a Yoshi who can use Brawl Yoshi's annoying camp effectively combined with having an actually competent offense like 4 Yoshi could be just what he has always needed.
