1.

I used to drop this mon a lot because the speed tier is simply serviceable and has no setup. It is, however, an absolute menace of a pokemon to bring in after sleep, with no real switchins, even having some defensive utility into dugtrio and dragonite. Absolutely terrorizes everything slower than it. I learned the hard way how good this is during rbypl by sleep sacking it during sets where it would've won me games by itself. Articuno leaving really moved this thing way up in viablity: there is no need for a 4th move and tentacruel, it's worst matchup, has gotten worse.
2.

This might be the best revenge killer in the tier. Tentacruel, Kadabra and Dugtrio all have the speed tier, but the first two wall each other and Dugtrio checks are dime a dozen. Persian runs into the issue of relying on slash for damage, so kang and dragonite don't risk much by switching in, whereas dodrio can crit + paraslam at any point. On top of that, Dodrio can be useful at any points in a game: it underperforms a little compared to other leads but it is serviceable and doesn't allow any sleepers in. As said above, it is a very dangerous revenge killer -- body slam crit into hyper beam kos most of the tier, barring it's few checks. It can even win endgames without much effort -- sometimes it just needs 1 crit or two to win and it can even set up on itself. Articuno leaving the tier really improved this thing's viablity: you could get counterswept by a hyper beam hitting it at the wrong time: now the worst case scenario is losing 70% to a slow rock type after coming in. Could easily be #! without golem and omastar to check it: It is also unreasonable to run a check to it every game --- they're all exploitable by something common.
3.

I used to sour on this pokemon for being essentially dead weight after an agility mon sets up. It really needs to get value early in a game and played very carefully to not die like that. Persian being more common and tentacruel being less good after Articuno made a more hostile environment for it. It only has Tent and itself as entry points, though it is a very good revenge killer after the other Kadabra is dead. Notably also revenges Kangaskhan from a very high range with an extremely spammable move from 50%.
Seismic toss is also an overrated 4th for it. It's not useless , but it is entirely possible to avoid a Kadabra mirror. I am pretty sure these mirrors are as common as they are due to tentacruel having it's usage as high as it is. I experimented with Substitute, Reflect(on lead) and Rest. Remember, if you successfully trade paralysis with the other kadabra you are both essentially dead, Seismic Toss is just icing on the cake.
-Substitute is pretty much used to paralyze tent then fish, or on sleep sacs, as kadabra is extremely painful to come in when given free turns. It's definitely my favorite choice.
-Reflect has the notable edge of letting Kadabra survive a haunter explosion on lead, and also letting it get away with stupid nonsense like fighting ninetales or dragonite in lead. If you really want to lead kad I highly recommend bringing it.
-Rest allows kadabra to trade thunder waves with itself in the mirror and then fish for special drops and try to click rest. That's it. This is a decisively poor option if your opponent doesn't bring tentacruel, but it can be woken up on wrap otherwise.
-Kinesis is a) how to ruin agility setups b) how to set up your own agility sweepers. I barely got to click it this tour.
4

Relying on Slash to deal damage really keeps this thing from being any higher. Slash is an extremely consistent move, which allows dragonite to simply switch in and threaten paralysis back: it depends on body slam and hyper beam to
defeat it's superiors critical hits to try to salvage back desperate situations. It also switches into almost nothing: gyarados body slams are the one thing i think it can bear to switch into without being immediately unfavored in the matchup. However, this is an excellent dugtrio partner, especially against the conventional 2 dugtrio check structures: kang and dragonite are the best pokemon to switch into it, as it speed creeps everything but 3 other pokemon. Thus it is very easy for persian to break dugtrio's checks for it to finish afterward. Haunter is not REALLY a check, sleeping persian means it has slept the pokemon it was fully walling anyway, Please run hyper beam on this thing. You will be glad you had it when you fight dodrio endgame(me)
5.

This is a pretty difficult pokemon to switch into and a very good reason to keep a high kangaskhan and clefable usage. Wrap sets actually have the potential to be pretty oppressive after thunder wave but i didnt use them much. Agility gives it potential to absolutely steal games. Brutal lead if it manages to agility up and then win the trade, threatening a faster twave or hyper beam, depending on what you can fit on it. This got much better with articuno leaving but still lacks some of the power dodrio has, in exchange for very good coverage. I used to never fit body slam on it but it's good to have a midground for when dugtrio decides to stay and fish for crit , or just having a 100% accurate move to finish something off. Dont be like me and run blizzard/hyper beam/twave/agility almost every game.
6.

Now that there's no need to check articuno, it isn't as necessary to have Tentacruel every game nor have articuno checks every game, so it is far easier to load "fat": teams full of normals that dugtrio struggles to break. Loading something like kang clef dodo persian + 2 is extremely unpleasant for an opposing dugtrio user and entirely feasible, i ran these structures fairly often. It's a pretty good cleaner when it gets the endgames it needs, but some teams will just be too fat for it to break. Like Kadabra, it is also completely worthless after an agility user has managed to set up, so not every endgame is good for it. This is why I struggled to load it much this rbypl: kadabra felt somewhat limiting to build without and loading dugtrio + kadabra both feels like asking to lose to dodrio/dragonite. The matchup spread on this one is very swingy: 100 to 0 vs haunter, yet can hardly break dragonite , gyarados or kangaskhan without critical hits. It is fairly valuable for haunter , electrode and kadabra alone, but sometimes it wont run into any of these and find itself praying for crits.
7.

i am gastlies.
This is the best golem abuser in the tier. The downside of running Sing on this thing is the fact that almost everything is faster than it. Not golem though. Provided it lands sing on the first try, it can get pretty ridiculous momentum for it's team. It also can manage something into just about every pokemon in the tier: thunder wave means this is about as bad to switch into as dragonite is, except that it has no wrap to get free switches. Counter is very dangerous for persian and kangaskhan to try to scout since paralysis is almost always on the table and Thunder Wave should never be dropped. Counter also allows it to switch into dodrio hyper beam and instantly ko it, barring crit. Blizzard, Psychic and Hyper beam are all excellent moves for this. I used to not think highly on body slam because of how weak it is compared to blizzard and hyper beam, but it is serviceable as a dugtrio and kadabra midground, not a 100% slot by any means, but good in small doses. The higher special bulk is also very relevant for matchups against the electrics, kadabra, and tentacruel. I would say the cuno ban definitely helped Clefable, but it's also a case of it being underexplored -- much like kang it will always find a way to go at least 1 for 1, but sometimes manages a much higher ceiling. This is definitely a UU pokemon and won't be returning to NU anytime soon.
8.
This is the biggest loser from the Articuno ban, and i soured on it pretty hard this tournament, evidently from my usage. I believe I had 16% usage around Week 6. The thing about Tentacruel is that it does have to be accounted for in the builder due to wrap and it's speed tier. It does have a pretty incredible kangaskhan matchup due to surf/hydro pump threatening crit OHKOs and kadabra being the only reliable switchin to it's water type moves other than itself and vaporeon. It is, however, very droppable unlike Kadabra. And ive found that tentacruel's favored endgames are not as easy to generate as the agility users(Dodrio Dragonite) or for the fast mons(Dugtrio Persian).
Tentacruel is vulnerable to being finished off by all to be above pokemon as well after even moderate chip and doesn't have many switchin opportunities into them either. There are other ways to deal with tentacruel(Kadabra, electrics, Vaporeon). It also allows kadabra in completely for free and it feels very much like a rhydon/tauros situation in ou: immediately forced out and extremely easy to exploit by the tauros player. Staying in is also a complete crapshoot --- Tentacruel is forced to wrap pre-emptively to avoid giving kadabra a free turn and that can just miss anyways --- it's a valid click if you predict a recover from the kadabra user, but it's still a risk.
I do not understand the people who had close to 100% usage with Tent. Every other mon i ranked above it has does not have a matchup as ridiculous as Kad/Tent, and wrap is just not as good when average team speed has increased and Persian and agility users are more common. I had 16% usage with this thing and genuinely did not feel it's absence like I did every other mon above it. It's awkward to load a pokemon that lacks the bulk that pokemon like Vaporeon, Kangaskhan, Clefable and Gyarados have to survive a hit from the agility users while also being completely helpless in another matchup. Tentacruel + Kadabra is exploitable and so is Tentacruel WITHOUT kadabra -- I found myself more able to freely build with a slower but bulkier water without a weakness to psychic and access to body slam paralysis like vaporeon or gyarados.
tldr: this pokemon isn't "broken". it's just good. that's it. move on
9.
More persian with no Articuno is pretty good for this guy. Though Ill admit the dugtrio matchup is atrocious and this guy really needs to do work early in a game or it feels rather dead weight and it is scary to load a team with no golem, kadabra or dugtrio to switch in to stomach hits from it after sleep and threaten it back. Notably relying on sleep to defeat kangaskhan is extremely meme and dangerous(and sometimes that will be the best entry point for it), but it risks much less sleeping something like dragonite or gyarados. Pseudo-checks stuff like Raichu, Dragonite, and Psychic-less Clefable due to it's very high special and having psychic, but exploding early can generate easy momentum. Im sort of wondering if Rest haunter has a point due to some of these matchups + psychic special drops alone, but that's for next tour.
10.
This is still a really good pokemon without Articuno around, and arguably got better. The trend of loading 1 water instead of 2 every game means it is very hard to switch into vaporeon once that water is down, and Quick attack/Acid armor/Body Slam give it plenty of options to be extremely annoying to Tentacruel. It also just has crazy bulk across the board: kadabra risks multple turns of body slam barring crits or special drops, and this is one of the few pokemon content to fight clefable because of it's enormous bulk. It's a good alternative to Tentacruel and i definitely developed a preference for it. One of the few consistent switch-ins to golem,dragonite , tentacruel and fire leads all in one, but the lower speed and lack of wrap do allow gyarados and haunter in for free.
11:
This is a really good lead into the common leads: electabuzz, fire leads, haunter, kadabra, and dodrio. It can literally opt to click any of it's 4 moves into electabuzz and none of them are an especially bad call. Explosion gives golem the option to even settle for doing 60-80% to something like dragonite/kangaskhan that risks a ko with a critical hit, so even in some unfavorable matchups it can cut it's losses. Admiteddly, this pokemon is extremely abused by things like Clefable, Vaporeon, and Tangela in specific completely humiliates it. On the upside, this is by far the best dodrio check in the tier and also keeps this a serious tier: it took the electrodes somewhere else. It's definitely not possible to load every game and golem is unable to finish games by itself, but it can get the ball rolling early or deny progress to dodrio at a crucial moment: it's also a fairly decent kangaskhan removal plan, which many pokemon do want removed to make progress(including your own kang). Also a pretty solid target
12
s/o
gastlies for the helpful flowchart
absolutely disgusting into teams with no golem, tangela, back electrics and once dugtrio is weaknened or removed. i think it's actually better to fish for critical hits instead of going for paralysis in many occassions given how frail kangaskhan and persian are on the special side.
13.

- i am tired and do not have much to say about you
14.

this is still a pretty good neutral mu lead and i noticed while building that unless you're loading golem/tangela it is very annoying to load something to cover for it in the lead slot. gg electabuzz.
15.

This is a very similar pokemon to Ninetales in lead, the differences being higher attack and speed, but lower everything else. This means it will sometimes paraslam electabuzz or kadabra before they get to act, but it will be put in ko range by critical hits and special drops easier. The most notable matchup is definitely tentacruel, as rapidash is guaranteed to get one body slam off before being ko'd by tentacruel, sometimes 2. It also has agility in the lead to be able to hyper beam/body slam if it wins the trade. I seriously suggest any Ninetales believers to give Rapidash a try. I felt it performed about as well.
16.

guh
17.

can't switch into stuff as easily as trode but not as walled, dont have much to say
skipping to 24 now
24:
This is essentially a sleeper whose entry point is Kadabra. This means Drowzee is very able to get sleep off of kadabra, but this pokemon is very lackluster against teams that don't have it. It's definitely not consistent across multiple games to spam being a slow sleeper with hypnosis and way less bulk than Clefable, but it performed alright in the games I did use it. Exeggcute can do something similar to this but that pokemon is a) weak to blizzard and b) takes more from kadabra's psychic
too tired to add the rest.