lugia
Pokemon can get powerful like ash pikachu. Pokemon Can Get Strong & Very Powerful So The Answers Is Yes.
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
Arceus
probibly regigigas
In battles, a Pokemon VMAX card is generally more powerful than a Pokemon VSTAR card.
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.
Pokemon indigo is about creatures that are magic and powerful.
Caterpie
Arceus
You can get Mewtwo in the Cerulean Cave.