Squirtle, IMO, is super easy. We heavily out-range him and his armor has been nerfed quite a bit. Almost all of his approaches can be stuffed with a simple jab. He's light, so he's easy to kill, and he's not that hard to edgeguard either. We can dtilt his upB if he doesn't perfectly sweetspot it. Probably a +2 for Zard or something.
Yoshi, I feel, is kinda tough. We out-range him most of the time, but he can DJ armor through most of our moves to punish us. It's very hard to juggle Yoshi, as he can DJ armor, downB, sideB, and even B-reverse command grab to mix up his descent and get the drop on us, but Yoshi can actually kinda juggle us with eggs and uair pokes. Yoshi can also combo us fairly hard off of his grabs. Both of these characters live forever, but being floaty, Zard is susceptible to dying early off the top from usmash, uair, or downB. Yoshi just lives forever no matter what, and Zard doesn't exactly have the best kill moves for him. Edgeguarding Yoshi is also difficult because of the same tools he has to avoid juggles, whereas Zard really has to look out for eggs while recovering, since they combo into Yoshi's aerials. However, what I'd say I hate most about the Yoshi MU is his downB. That move hits as fast as a jab, so it can be done quickly out of a CC, and it threatens to poke anything other than a full shield. You jab or DA him below high %'s and he CC's it? You're gonna get downB'd. He just tapped your shield with some safe DJC pressure? You're gonna get downB'd. If you're lucky and it hits the center of your shield to prevent a poke, then the stars will probably poke and keep you from punishing and now you have to fight without a shield for a while. That also leads me to my next point: shield pressure. It's awkward to safely pressure Yoshi's shield without receiving a tongue, head, or foot in the face, but Yoshi can pressure us pretty well and our upB is not as good of an OoS option as I used to think long ago. This MU is probably a 0 or -1 for Zard.
Edit: @
AuraMaudeGone
, is there a thread where we can directly talk about your 3.6B Community MU Chart?