I think you'll need to battle the Elite Four once then beat it again, but I'm not so sure.
steven doesnt get any stronger when u double battle with him
Pokemon
In battles, a Pokemon VMAX card is generally more powerful than a Pokemon VSTAR card.
In a Pokemon battle, a Pokemon GX is generally more powerful than a Pokemon EX. GX Pokemon have stronger attacks and abilities, making them more formidable opponents.
Azumarill is more powerful because it can learn powerful moves and has more evolutions which will make it stronger. But if you need a flying type Swanna is considerable.
Pokemon evolve so that you can have a larger variety of Pokemon and to have better ones that can be more powerful.
It is rock and grass, so anything rock or grass type will make it more powerful! :)
probably no Pokemon can be said most powerful as they get tougher with training as in case of charizard where it was first beaten by blazigen and in battle frontier it defeated articuno same is with every Pokemon so level them high make them learn new powerful moves and they will get more powerful
bakugan of course! and it is way cooler than Pokemon Pokemon sucks!
Nothing negative, the more yu breed the more powerful a Pokemon gets.
Yes they do get more powerful stats when they evolve, but they learn more powerful moves slower. Your most likely better of evolving them as soon as you can. Sources: Personal experience
Machamp. He has a super-effect.