So this tier has shifted massively once again due to PU updates, and I think it's kinda in a weird spot right now.
Mons Leaving the Tier



Due to Arcanine and Fearow rising to NU and Rapidash's ban from PU, the "Fast 4" of RBY ZU have all risen to PU to fill in the power vacuum. This is a massive change to the tier, as these were really the only four good fast fully-evolved Pokemon. Magmar and Primeape were arguably the top 2 Pokemon, Scyther was close behind, and although Pidgeot was more niche it still had its place. This will overall slow the speed of the tier by a huge amount. This is very important to consider when factoring in the new drops, as outspeeding ZU's new threats may not be as easy as it initially seems.
The New Mons

ZU FINALLY HAS A FULLY-EVOLVED WATER-TYPE FOR THE FIRST TIME EVER. Kingler looks quite promising in this tier. Due to the fast 4 leaving, Kingler's speed is kinda decent? HOWEVER the mons that dropped alongside Kingler may give it trouble. Nidoqueen is literally one base speed higher and has Thunderbolt, while Pinsir hits it hard with Slash (tho it loses one-on-one). I feel Kingler will be a good mon at punishing teams that are too slow.

Out of the drops, vilegod is the only one which has been in ZU previously. Its best trait last time it was in ZU – the Primeape matchup – is no longer present in this tier. However, I think Vileplume is a much better sleeper than Parasect. Although it has to rely on Sleep Powder, it lacks a 4x fire weakness. Nidoqueen and Dragonair are probably forced to run fire blast in this tier to cover Pinsir, which really hurts Parasect. Vileplume probably fits the role of every sleep powder user ever in that it is good at landing sleep but ass outside of sleep.

Thunder Wave is a very rare and valuable move in ZU, so I think Wigglytuff's access to Thunder Wave automatically makes it worth using. It will likely function as a bulky glue mon that can force paralysis on something like Kingler or Pinsir to reverse the opponent's momentum. I also think it's hard for Machamp to fit Submission in this tier so maybe even that can't break tuff.

Machamp also seems like a glue Pokemon similar to Wigglytuff, with better offensive stats at the cost of utility moves. It probably needs Fire Blast for Pinsir, Earthquake for Nidoqueen, then two of slam/beam/submission? I think it's best to drop submission for slambeam but hitting wigglytuff might be useful.

First of the "big 2" in my opinion. After getting kicked out of PU by Nidoking, Nidoqueen seems very well-positioned here. Hard to outspeed due to the fast 4 leaving, and has the classic "impossible to switch into" Nido thing going on. Has to run fire blast to catch pinsir tho so less flexibility with moves.

The other of the "big 2" Very hard to outspeed and has SD + Hyperbeam. There is a chance that SD is a noobtrap and the optimal way to play pinsir is just spam Slash (extremely free click in this tier). If SD is good though then it will prob be super deadly since not much likes taking a +2 Hyperbeam in this tier, and has coverage to break rocks.
Potential Winners

Departure of fast 4 makes this guy fast, Nidoqueen displacing Sandslash as the ground makes Bok better as well as Super-effective Earthquake hits it a lot harder.


These two get buffed a lot. Magmar leaving the tier makes Flareon the only fully-evolved fire in the tier. If Pinsir turns out to be absurd, Ponyta is one of the few mons that outspeeds it and can fire blast it, so I think it will be very important assuming Pinsir is not banned.
Potential Losers

Being slower than Nidoqueen is ass and tuff also exists as a twaver now. Dragonair does have a speed advantage over Tuff and Agility so it definitely has a place, but I don't think it will be as universal as old ZU

Mostly outclassed by Nidoqueen now but has a better typing. However, not being EQ weak matches it up better vs. Machamp and Arbok compared to Nidoqueen, tho it doesn't improve the queen matchup due to Blizzard.

Nidoqueen and Dragonair and probably Machamp are all gonna run Fire Blast to deal with Pinsir so bad for Parasect, I think vilegod will be the superior sleeper.



Now that the tier has an actual fully-evolved water-type these mickeys are probably not as useful. Poke also competes with tuff as a slow bulky twave mon.

When your whole thing is walling scyther and pidgeot and those two are no longer legal LOL yeah this thing is going to SU
Mixed/Unsure

Omanyte was never a good Magmar check and it will be much better into Flareon/Ponyta, but Scyther and Pidgeot leaving the tier means it has less things to check. Forces Pinsir to respect it in builder by running Submission/Toss tho which is good. However, it gets eaten alive by Kingler.


These two can tank a boosted hyperbeam from pinsir and threaten it with fblast/boom which is pretty cool. However, they are ass into nidoqueen, flareon and machamp. They also don't threaten Vilegod nearly as much as they threatened parasect, so that's also not really good for them.

Four mons that outspeed poliwag and hit it hard are now gone, but Pinsir/Machamp are bulky and hit it hard, kingler doesnt take much damage, and Wigglytuff threatens twave. Its old checks are gone but new ones have taken its place.
Speculative VR