Blaziken, Kygore, Groudon, Raquaza........ with an high level....
and a electric type Pokemon that knows electric moves.....
Fire and water are the best combination to beat the elite 4.
Have to beat the elite four.
beat the elite four
No
In Ruby and Sapphire yes you need to beat the Elite Four first, but in Emerald you can catch Raquazza before or after you beat the Elite Four.
how to beat Pokemon emerald
when you beat the elite four
Beat Elite Four.
Beat them and the champion
yes.
Beat all the gyms until you get to the elite four CRUSH THOSE ELITE FOUR PEOPLE and you will battle steven beat him and you beat the game
If you don't have blaziken i recommend you get camerupt, he helped me beat a lot of the elite four