Use your strongest Pokemon that you know have a type advantage and/or super effective attacks vs the foe. Other than that you can just use whatever tactic you want.
There aren't specific Pokemon for battles.You should use your strongest Pokemon.
your strongest Pokemon
you should use water types because they are strong against fire types
you should have an ice type Pokemon, a fighting type Pokemon and an electric type Pokemon
Against the Elite Four in Platinum i use: Staraptor-Lv.90 Heatran-Lv.90 Empoleon-Lv.95 Dialga-Lv.90 Palkia-Lv.90 Giratina-Lv.90 It's easy with these Pokemon or any Pokemon really around these sort of levels.
There is no easy way to beat the Elite Four. You have to level up your Pokemon and use the right types of Pokemon against each of the elite four (i.e. don't use a fire-type Pokemon against water-type. Use electric instead). I recommend level 60 or so for the Elites. Good luck!
yea so dont use one in the elite four
See question "Is this a good team to beat the elite four"'s answer.
FireGrassWaterGhost or DarkElectricRock or Grond
Your starter Pokemon, and 5 other Pokemon of differing types that are of a decent level (40) and check other websites to make sure you can battle all types with your team.
Pikachu's team
for emerald, raquaza, groudon, kyogre, your starter pokemon, magnemite and wailord.