I've never seen (nor played against) a Yoshi, but from what I remember from his weight in Brawl, his weight seems to be in the combo-able group, barring doublejump superarmor. Worse case scenario, upthrow -> cypher -> upair at low-mid percents gives a good 40+ damage if you space it properly, so if you can tranq the Yoshi, get your stick and grab, and do somewhat ok in the neutral game, then you're probably all good.
On the topic of approach moves, does anyone have any good ideas vs. a side-b-happy Squirtle? Planting mines (I forgot to dump C4s) and chucking grenades doesn't work, since squirtle can shoot water fast enough to neutralize them, cypher trades at best (and not in Snake's favor, since it just turns into a reset to neutral and it's mentally taxing to time optimally), and I don't remember being able to time Snake's tilts well enough to actually hit squirtle. Fishing for back airs also seems a bit too telegraphed to be effective, and tranqs just go over squirtle. Any ideas?
(Same question goes for Kirby's dash attack (since it clanks with tilts and moves too fast to be tranqed), though not as urgently)