Pokémon B/W. How's the adventure going so far?

[Sonikku]

Mariguana (Serperior) - Lv. 59 ♂
Nature: Bashful
Holding: Shell Ball
Knows: Giga Drain, Wring Out, Leaf Blade, Slam

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Oshare (Leavanny) - Lv. 24 ♂
Nature: Brave
Holding: N/A
Knows: Cut, Bug Bite, Razor Leaf, Protect

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Redeye (Basculin) - Lv. 25 ♂
Nature: Adamant
Holding: N/A
Knows: Aqua Jet, Chip Away, Take Down, Surf

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Tranquill - Lv. 23 ♂
Nature: Naughty
Holding: N/A
Knows: Quick Attack, Air Cutter, Roost, Fly

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Drilbur - Lv. 27 ♂
Nature: Rash
Holding: N/A
Knows: Metal Claw, Dig, Strength, Slash

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Golett - Lv. 32 ?
Nature: Bold
Holding: N/A
Knows: Flash, Mega Punch, Magnitude, Dynamic Punch

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i should maybe level up the rest of my team before fighting the elite four

because the only one that wins anything atm is mariguana

edit: ps my team is mostly made up of pokemon that can use the special abilities like fly, surf, cut, strength, and dig so i can break my way through everything