Dude you are wrong here. Never in the history of pokemon has a mon invalidated more other mons than Lando-T. Ok maybe chansey has.Does Lando-T make pokemon walled by it unviable largely due to not being able to bypass it? N o
I agree that pex is not comparable to lando. I mean for one thing lando's offensive presence was S-tier, it's z-move sets being some of the most dangerous and powerful in the game. But yea aside from pex being a pivot and lando being able to run a good pivot set, there's no similarities.The last thing I wanted to touch on was "you could check all these pokemon with Lando-T instead of with multiple teamslots", because this is quite deceptive. Lando has almost never been anyone's only line of defense against anything. If scarf Lando-T was your only line of defense VS. Lop, Mmaw, and Zard-X, that was very, VERY far from sufficent and you were going to get overwhelmed. Even running Defensive Lando-T as your only line of defense is really questionable, a lot of teams had outs to these things that weren't Lando-T. If I run Toxapex as my only line of defense VS. Specs Keld, Band Azu, and Weavile, I am very likely fine because I'd have to misplay real hard to get a regen tank that is immune to toxic and has 2 forms of recovery with gargantuan bulk overwhelmed.
Basically what I'm saying is, keeping a good chunk of the metagame in check does not make you Lando-T, and it does not make you a net positive.
This is not necessarily my view, but I could just as easily argue that Pex promotes more skillful play. Instead of being able to sit back and click attack moves over and over til everything is dead, you're forced to adapt, predict, make double switches. You're mad you didn't win the game after clicking QD once on volc? Tough. It's not gonna be that easy, you will be required to play more skillfully in order to win.It does not matter if you out-predict your opponent and hit it with an SE move on the switch. It just switches out, regens back 33% health and shrugs off the damage, essentially invalidating skillful play. Thus, it has an unhealthy level of competence of stopping offensive play from the opposing team (Bulk, Regen, Recover, Haze, Knock Off). Clef functioned similarly and was ridiculously broken pre DLC (Though I understand the Council's POV and a significant meta shift arriving soon is a plausible reason to hold off a suspect).
This invalidation argument is not good. Toxapex takes away no agency from it's opponent and doesn't force objectively non-optimal plays. Clearly I'm saying, this is no Arena Trap. This is simply a mon, who may or may not be too powerful for the tier. If pex gets banned, it should be for that very simple reason