>>33236878The "usual suspects" are replaced every gen by more powerful mons. Snorlax lasted four gens before being UU, and now it's down in RU iirc. Garchomp has been at least OU since gen 4, but its usage has been declining. Old bastions of OU like Keldeo and Zapdos are in lower tiers. Previously banned mons, like Manaphy, Thundurus-I, and Mew are all not even OU now. Heck, can you imagine Latios and Latias being banned nowadays? Salamence even? Now they're not used often enough in OU to be listed. There are more and more tiers lower and lower being added because of the power disparity caused by the powerful newcomers. In gen 4, we had Ubers, OU, UU, and NU. In gen 5, they added RU. gen 6, PU. And now in gen 7 they had been talking about adding FU below PU. You can follow almost any mon, with few exceptions, and see a steady decrease in tiers, or even sharp dropoffs where something that is just objectively better replaces it (See Conkeldurr and Machamp for example.)
Heck, you have Pokémon that would have probably been OU maybe 2 gens ago rotting in UU and RU, or even PU. I can't imagine, for example, Silvally NOT being OU in gen V, and maybe even gen 6. And naturally you can look at Keldeo or Gliscor for other examples. Power creep is very, very pronounced.
