Pokemon can get powerful like ash pikachu. Pokemon Can Get Strong & Very Powerful So The Answers Is Yes.
That depends on your definition of powerful.
Arceus
NO. Only ash got that as a choice. You have to catch it in the viridian forest, but it's rare
Mew
You can sell Pokemon cards.But if you mean Pokemon from a Pokemon game sell it to a friendfor a trade with a powerful Pokemon with a useless one
Well, powerful Pokemon are powerful depending on how you breed them and how much you train them
That depends on your definition of powerful.
Pokemon
probibly regigigas
Arceus
lugia
There is no powerful Pokemon. All the Pokemon found in the ruins are Unown. The special ones you may be thinking of are the new "?" and "!" Unown.
You can get Mewtwo in the Cerulean Cave.
Pokemon indigo is about creatures that are magic and powerful.
Caterpie
Arceus
Meganium is considered a powerful Pokemon. Traditionally male, this Pokemon is a grass type that is the final form of Chikorita.