After defeating the
Elite Four and becoming the newest Kanto Region
Champion, you can rematch the
Pokemon League whenever you would like. When facing the Elite Four again, each member will use the same Pokemon as before (but at higher levels), as well as adding one
Alolan Form Pokemon to their team that matches the type of Pokemon they specialize in using. You will continue to earn loads of
Experience and
Money when you rematch and defeat the Elite Four.
When it comes to
Lorelei, the first member of the
Elite Four, she will still specialize in using Ice Type Pokemon, continuing to battle with Dewgong, Jynx, Cloyster, Slowbro and
Lapras. However, she will also use a Sandslash in its
Alolan Form in this battle. This time around, all of her Pokemon will be at Level 61, with the exception of her Lapras that will be at Level 62.
Just like your first battle against her, Electric Type Pokemon actually work best against
Lorelei's
Pokemon Team. This is because almost all of her Ice Type Pokemon are also part Water Types, meaning they are especially weak to Electric Type Attacks. But don't dismiss using a Fire Type or two when battling Lorelei, since her Jynx and
Alolan Sandslash are especially weak to Fire Type Attacks. Finally, make sure the Pokemon you do use against Lorelei are at Level 65 or greater, as this will allow you to match up well against her and the rest of the
Elite Four.