S

Only mon that is not dropped even a single time in my current builder. I feel that's worthy of a tier of its own.
A+

I was told a couple years ago that most people want to run offlax, but need to run reflax. And I think one of the biggest boons of my preferred teamstyles these days is just how much offlax I'm getting to run, because goddamn is that thing a monster.

Game in game out, so reliable. Status, boom, damage, pressure, defense, eggy does it all. It's such a glue mon and it works with almost anything.

Seems I'm not the only one this year who thinks Chansey has been surpassed by Eggy. Peasounay put Chansey even lower at 5. I've definitely dropped Chansey a lot in 2025. I'm not sure I've played a full set this year where I've brought Chansey every game. I don't think I've ever gone so far as to triple drop it, but I've dropped it twice plenty of times. Still very good, but the days of normal 3 dominance are over.
A

Alright, Zap 5, here's the fun one. A few weeks ago, I ran a 2025 self scout that had my Zap usage at 60% with an 89% winrate. I've taken my foot off the Zap gas pedal a little bit in recent weeks, but I have no right to put it any lower than this with how good it's been to me.

Fast, strong, respectably capable of brute forcing through Chansey if needed, really reliable lead and endgame cleaner. Just another really solid game in game out kind of mon.
A-

The other fun one. On the same self scout I mentioned in the Zapdos blurb, Starmie had 33% usage and 40% winrate. Shortly after I was convinced to bring it to games 1 and 3 of a set, and the only game I won was game 2. Of the big 3 psychics, it's by far the worst at trying to fight Chansey. Obviously none of them really want to short of possibly Hyper Beam Egg, but Starmie is the one that's most up a creek unless a paralyzed Chansey is coming in at around half and Starmie is feeling particularly hax happy with Psychic that day. For me, it's bulky, but I wish it was a little bulkier. It's fast and strong, but Zam is a little faster and a little stronger. And the more I play with them, the less I feel like Starmie's coverage makes up for that.

I've used Cloyster significantly more than Starmie in 2025, and I've been impressed by it. Enough that I seriously considered Cloy at 7 and Mie at 8. But I realized that usage wasn't because Cloyster was actually better than Starmie, it was a result of Cloyster being a better fit on these normal dropping teams that I've been using. Cloy > Mie in my personal crack den meta? Sure. But not for RBY OU as a whole.

I use to think Jynx was so ass, but it's been really good to me back since mid/late 2024. I remember getting told off for wanting to pair Jynx with a second sleeper, and Jynx Egg was a rare niche pick. But lo and behold, it's 2025, and Egg has unlocked the consistency that Jynx had been missing to become an OU threat that I respect.

Gengar has definitely dropped a few ranks since last year for me. Not because I think it's gotten worse, but because I've come around so highly on Jynx and Cloyster. I still think Gengar is amazing, but more stuff is also amazing now too.

You had to figure Rhydon was probably taking a hit if Zapdos and Cloyster are as high as they are. I'd say the Chanseyless movement has also been bad for Rhydon, because it's opening teams up to more options that are bad for it. Zapdos teams have never been more capable of beating Rhydon teams than they are now. I believe it was towards the end of last year's invitational that Amaranth said the best answer to a Zapdos team was now a better Zapdos team, which is a sentiment that I am very on board with.
B+

I think the first time I ever seriously used Vic was when I brought it against Serpi in 2024 Summer Seasonal Grand Finals after he cteamed the ever loving fuck out of my usual brings in Set 1. I used to not take it seriously, but now I think it's very good. Not something I bring too often, but surprisingly reliable when i do.
B

Believe it or not this is actually a step up for Jolt. Last year I had it below the cutoff. I came around on it a couple months ago when I first was convinced to use Jolt Egg Zap Vic. I've used a couple different teams with it since, and have now been convinced that it deserves it's OU spot.

I will fight for Slowbro to stay as an OU mon for as long as i play this game. Call it inconsistent and unreliable, call it a hax magnet, call it something that barely ever gets brought. But when you're actually in the game, and Bro gets revealed by a player who knows what they're doing and has played it well, it makes you feel a fear that a non-OU mon can't make you feel, because it can do things to you that only an OU mon can.

The only currently non-OU mon that I'm placing above the OU cutoff. Great backup for Zapdos, and can even cook a little on its own. Definitely needs a Snorlax packing the big boy buttons backing it up to work with any reliability though. Thankfully Cuno and OffLax both fit well on Chanseyless.
Anything below here is sub-OU in my opinion, and subsequently I put less time/thought into all these tiers combined than any one tier above the cutoff
B-

For as much as you'd think my Chanseyless loving ass would be all over Persian, I've just never clicked with it like that.

Worked the one time I brought it this year, but I'd rather just use Cloyster or Starmie.

Something something worse Rhydon, fuck you Bee for cucking me with Don + Golem in ALTPL.
Below here is stuff I've never actually used and am going off of from the experiences of having these mons used against me/theorymonning.
C+

Both of these are mostly ineffective PT merchants, but Molt has stolen a couple games from me off ladder, so I give it the nod over Dnite.

I don't think any of the SD sweepers are good, but Pinsir having access to PT to somewhat help facilitate itself makes me give it the bump over the others.
C

Sandslash coverage gives it the edge over Kingler for me.
Lmao

Speed ties Zam, Ground type, QuakeSlide, Slash, okay power, can work as a para-fisher with sub. But it's too frail, and usually is too dependent on critting to get the damage that it needs. Fuck the dude who runs sub sand-attack on ladder tho. This ain't ADV Ninjask.
D

I meme-shitted with this thing on ladder awhile ago and it slightly underwhelmed my expectations. Still probably a better fighting type than Machamp tho.