My team is really high because when I versed the 1st gym they all were level 20-40 and when I was at the Elite 4 I flogged them and this is my team and a good Strategy with these Pokemon
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Team:
1. Harryama Level 64, Moves: Super Power, Calm Mind, Headbutt, Bulk Up.
2. Swellow Level 65, Moves: Fly, Steel Wing, Feather Dance, Peck.
3. Groudon Level 68, Moves: Earthquake, Eruption, Flamethrower, Rock Slide.
4. Shrifty Level 65, Moves: Leaf Blade, Dark Pulse, Bide, Harden.
5. Exploud Level 81(Over trained him), Moves: Uproar, Super Power, Tackle, Harden.
6. Charizard Level 73(Trade from Fire Red, Leaf Green), Moves: Flamethrower, Wing Attack, Rock Smash, Steel Wing.
Hint to beat Elite 4/ Champion.
Sydney:
No. 1 Mightyena Level 46. Use Harryama, Exploud: Super Power,
No. 2 Shrifty Level 48. Use Swellow, Charizard: Wing Attack,
No. 3 Cacturne Level 46. Use Same as 2,
No. 4 Sharpedo Level 48. Use Harryama, Exploud, Shrifty: Super Power, Leaf Blade,
No. 5 Absol Level 49. Use Harryama, Exploud: Super Power.
Phoebe:
No. 1 Dusclops Level 48. Use Shrifty: Dark Pulse,
No. 2 Banette Level 49. Use Same as 1,
No. 3 Sableye Level 50. Any Pokemon,
No. 4 Banette Level 49. Use Same as 1,
No. 5 Dusclops Level 51. Use Same as 1.
Glacia:
No. 1 Glalie Level 50. Use Charizard: Rock Smash/ Flamethrower,
No. 2 Sealeo Level 50. Use Shrifty: Leaf Blade,
No. 3 Sealeo Level 52. Use Same as 2,
No. 4 Glalie Level 52. Use Same as 1,
No. 5 Walrein Level 53. Use Same as 2.
Drake:
No. 1, 2, 3, 4, 5: Any Pokemon.
Steven:
No. 1 Skarmory Level 57. Use Charizard, Groudon: Flamethrower, Eruption,
No. 2 Aggron Level 56. Use Harryama, Exploud: Super Power,
No. 3 Claydol Level 55. Use Shrifty: Leaf Blade,
No. 4 Cradily Level 56. Any Pokemon,
No. 5 Armaldo Level 56. Same as 4,
No. 6 Metagross Level 58. Use Charizard, Groudon: Flamethrower, Eruption.
Then you win. But that's only the *FIRST* part of the Pokemon League.
If anyone wants me to do the Second part with the higher leveled Pokemon, Tell Me.