I used the three legendaries, mew two, my starter and a kadabra. Make sure that they are all past level 65. Also you need some revives and keep recover with mew two. That will be very useful when fighting the champion.
with what pokemon, i cant answer your question if you dont tell me what pokemon
you need a fire type a water type a dark type a grass type and a dragon type.
You can go to Mt. Ember and get the ruby.give it to celio
Fire and water are the best combination to beat the elite 4.
To defeat Steven, obtain all eight badges. Then go to Ever Grande City and defeat the Elite Four. You should have a strong Fire-type Pokemon or a good fire-type move.
There is no sure way to defeat them at all , just have some good level Pokemon , and a range from Ice , Electric , Ghost , Grass , Fire , Ground and normal , and you will win that way
Have them hold exp share while your strong Pokemon constantly defeat the elite four.
Special*. Bulbasaur*. And to answer your question, you get Entei, the fire dog pokemon, roaming around Kanto region AFTER you defeat the Elite 4.
the best fire Pokemon u could have to beat the elite 4 would be blaziken over level 75 or higher
Strong pokemon. Have a fire pokemon, grass pokemon, water pokemon, dark pokemon( psychic are useless against dark) and a lot of revives. I had to buy 60!
I would suggest fighting the elite four with a water, fire, ice, rock, electric, and fighting type pokemon.
you defeat the elite four you defeat the elite four