Shielding his dair, Ivysaurs up air goes through yoshi's dair. There are a lot of characters that do go through it but it's a lot harder to do than with ivysaurs. Bait out the dair and punish because it has pretty long end lag
Space him out, preferably with a long disjoint
Watch out for that offstage game, avoid him offstage unless you're above him
Always look out for that fair, high damage and it spikes
Don't try to intercept start of double jump due to super armor
