First off this is kinda cool, glad to see smogon is expanding outwards even if it's gradual. Anyways I have a couple of personal opinions regarding placements.
Lucario from B -> C: Lucario is, in a word, fraudulent. Having bad matchups into a flurry of decks like Alakazam, Festival Lead, and basically any Psychic deck, there's not much reason to play Lucario in my opinion. Basic Box's matchup isn't particularly great, either, as while you can Hariyama spam to get a favourable prize trade, you can't fuel up Hariyama without having to Aura Jab first. Your Dragapult matchup isn't even that good: Mind Bend is incredibly powerful into Lucario alongside Risky Ruins, and the 200 + 120 + 20 math is just so easy for the Dragapult player to obtain that I can't really see it doing well most of the time. While Lucario has good draw and support from the Lunaroc engine and Hariyama, its matchup spread is too voltaile for me to have it in B tier. What seals Lucario's fate, however, is the uprising of Hide 'n' Sneak after it Top 4d Louisville and made finals at Nice, which is basically the closest any two decks have in this format to a 100/0 matchup.
Excadrill from B -> C: Excadrill is also not that great of a deck. Ever since Worlds, Drill has made barely any movements in the metagame. While Drill was hyped up as a real threat going into Worlds and was talked about as being "favoured into Pult," the issue with Drill is that it simply doesn't draw cards. Regardless of whether the Drill player is on Trolley or Cape, both have serious issues regarding finding the pieces for everything to operate. While Drill is able to set up Metangs well thanks to Genesect, once you take a knockout serious issues start to pop up for Drill. Once your opponent hits into Drill, you can't really just spam Jumbo Ice Creams because your hand will usually be very poor. Needing huge amounts of Energy in your deck and needing Metal Makers to hit is also not reliable mid and lategame: too often have my opponents whiffed an attack using Metagross or their second Drill because they weren't able to find their Energy Recycler and couldn't Knock Out my active Pokemon. Drill is great on paper, having access to a strong single prizer that hits for 300 and nukes Crustle, strong healing options to counter Pult or something like Hide 'n' Sneak, and being able to do 330 damage to one-shot Pult, but in practice Drill feels pretty bad to play.
Like Lucario, Drill also has serious matchup issues. Alakazam destroys Excadrill, Slowking destroys Excadrill (assuming no Shaymin), Blaziken destroys Excadrill... I do think Pult is somewhat unfavoured into Drill, but Unfair Stamp / Judge are super powerful into Drill. Moltres is also a pretty common card for Pult, and with that you can smack into Genesect for a free two prizes or hit into Drill. Overall, Drill is for sure on fraud watch at the moment. I do think Drill's potential hasn't been unlocked yet, but considering the current metagame and lack of good players who are willing to play Drill, I'm not sure if Excadrill's optimal list will ever be unlocked.
Ursaluna from C -> Untiered: This deck is really bad, kind of like Hide 'n' Sneak if it needed triple the setup to get going. Having to play Mega Greninja is miserable, and needing three Fighting Energy in hand to play Ursaluna feels super mid. Don't really think it has good matchups into most of the meta decks, and it doesn't have any strong Day 2 finishes.
Ceruledge from C -> Untiered: Too highrolly and doesn't really beat anything notable aside from Fire-weak decks. Also doesn't have any notable finishes.
Mewtwo from C -> D: I like Mewtwo (even got my mid-year mat with it), but this meta is not favourable for it. Mewtwo doesn't even reliably beat Dragapult because disruption, Hammers, and Bossing up the Clefairy is a death sentence for it. Other matchups, like Basic Box, Slowking, Hide 'n' Sneak, and Festival Lead are also very bad for it due to Mewtwo's lack of a strong damage output. If not for Juho's finishes and the Top 64s Mewtwo has gotten at Puebla and Recife, I would even recommend putting it into Untiered.
Typhlosion from C -> D: Typhlosion's main appeal is being a Fire-type and being able to incinerate Crustle, Drill, and Hydrapple, but the deck hasn't been converting well recently (unless your name is Yasmin Kiss). Crustle hasn't been getting as much play and Drill has been on fraud watch for a while as well. Your Pult MU is honestly not that bad but it's still pretty bad, and as a general one-prizer beatstick I do think it's worse than Festival Lead, Toucannon, and Alakazam.
Toucannon to C: Toucannon is unironically not that bad. I was expecting it to be a random bad deck, but it's surprisingly powerful thanks to its low maintenance and good damage output. Being able to play four Mists also makes it super cracked into Alakazam, and there's a lot of draw power to spare thanks to Toucannon's Ability. Legacy is also very good into some more random decks like Hide 'n' Sneak. Of course, you don't beat Dragapult or Festival Lead, but it's definitely somewhat decent.
