>>50773932Assuming with items, with any resource available to you at any given point in the game:
>Caterpie in Gen 1 (for Magikarp in Gen 1, you can use that one distributed Magikarp with Hydro Pump to theoretically beat the run)>the regis in gen 3 (only have access to Explosion until level 9)But that's it.
Itemless in battle like how most Poketubers do it, you have Weedle in Gen 1 (cannot beat Agatha because Poison Sting is just too weak versus her Gengars), Magikarp in several games, Tynamo in Gen 5 (cannot get past Shauntal's mandatory Golurk). There's also several examples in later games (barring Gen 6 and onward, because theoretically Amie could proc forever) where shitmons cannot make it past the E4 or weird gauntlets, this is why Poketubers tend to use 'weak but still usable mons' in Gen 4 or 5. Kricketot for instance would get obliterated in either of those games itemless.