Having played this tier quite a bit on the ladder now I would like to share my thoughts about the Pokemon that I feel are relevant in the meta.
I really enjoyed playing it and think it is a cool tier with quite some variability in it. But one has to be aware that partial trapping moves play a much bigger role than in OU because there are 3 very viable wrappers in Dragonite, Tentacruel and Victreebel and one viable Fire Spinner in Moltres. Anyway Wrap is not broken and if something should get banned then ban Dragonite (no complex ban please). So here is my list:
-Broken Pokemon (Those are arguably the best Pokemon in the meta):
-Articuno,
-Dragonite
I called the category "Boken Mons" because i feel they are both broken. That being said the meta is playable with both of them around, because Articuno keeps Dragonite in check. So my proposal about them is either leave it alone or ban both of them. The only reason I see for keeping Articuno (which is ridiculously strong for UU standards) in UU is to keep Dragonite in check. If Nite goes that reason goes as well, so banning only Dnite does not make sense imo. Banning only Articuno would make Dragonite even more broken than it already is, which is absolutely ridiculous. So like I said, ban both or don't touch it.
-very good Pokemon: (not ordered)
-Raichu: not much to say, good speed, STAB Thunderbolt plus Surf coverage plus Thunderwave, poor bulk keep it from being ranked higher, also cannot touch VicSaur
-Kadabra: one of the fastest mons in the tier, outspeeding the bse 100 Pokes, which is huge, nothing likes to take Psychics, Twave. As with Raichu poor bulk makes it manageble.
-Hypno: double status, STAB Psychic, relatively nice bulk. Low speed hurts.
-Tentacruel: Base 100 speed plus wrap is monstrous, second strongest Special attack in the tier behind the birds, can run SD even, checks Articuno and Moltres, very good mon.
-Omastar: Moltres, Dodrio wall, good matchups vs Kanga and Persian, strong Hydro Pump, pretty hard to take down, and Raichu does not enjoy the switch in.
-Gyarados: BlizzBolt if it wants to, strong Bodyslams, outpacing Dragonite with access to blizzard is never bad. Can usually trade vs one Pokemon of choice.
-Haunter: Hypnosis, the only thing that stops wrap reliably which is enough in its own right.
-Moltres: walled by Omastar, Fire Spin is a shit move, far from being as good as Articuno, still powerfull and a solid choice
-good Pokemon: (not ordered)
Kangaskhan: this is not OU, late game sweeps work differently here, a Tauros-like Pokemon is not really needed, has a bad matchup vs Articuno and Dragonite can usually set up on it
-Persian: see Kangaskhan but drop the "usually". it is a dangerous Pokemon to switch into, but the biggest Dragonite Set up bait in the tier
-Venusaur: solid choice as a sleeper, faster than Victreebel which can come in handy and speed ties Dragonite which means it has at least a chance to put it to sleep, Razor leaf is strong, but it lures in the birds so you need a plan for that
-Victreebel: see Venusaur, but it has acceess to wrap and Stun Spore which is nasty, but like Venusaur usually fails to do much after putting something to sleep
-Charizard: yes, Charizard. It is not completely outclassed by Moltres since it has access to SD +EQ with 100 base speed meaning if it finds a setup opportunity Pokemon such as Raichu and Tentacruel have a good chance at losing against it
-Dodrio: strong af but Omastar walls it which limits it heavily
-Golduck: Amnesia sweeper but struggles vs Tentacruel which can just come in on Amnesia and can start wrapping, it won't even be punished too hard if it misses.
So this is my overview with some really short descriptions of what I feel is relevant in the tier, and I really feel a team is definitely worse without Dragonite and Articuno. But those are the only mons, everything else is somewhat mutuable (so it is definitely less centralized than OU)
Fell free to agree or disagree and adding something if you feel it is necessary.
Edit:
Just an example of what makes Articuno broken: The calc Articuno vs Raichu, a Pokemon that has the typing and speed advantage over Cuno:
Raichu Thunderbolt vs. Articuno: 165-194 (43 - 50.6%) -- 1.6% chance to 2HKO
Articuno Blizzard vs. Raichu: 164-193 (50.7 - 59.7%) -- guaranteed 2HKO