The Battle frontier is a post game location in Roggan Town which can be accessed in a cave to the right via Rock Climb.
Areas of Interest
Battle Tower
Battle Arena
Battle Pyramid
Battle Factory
Challenge Championship
A tournament with powerful trainers from allover different regions, like gym leaders and champions. Every time you win you get a ranked higher, the starting rank is Novice and you may be promoted later with Veteran and Master. Rewards given after completing a tournament are according to your own current rank.
Tube Challenge
A challenge involves battling 13 trainers - these being around Lv83-85, at the end of the challenge you'll face the Arena Master. Whilst the Arena Master only has one Pokemon, be aware that it is Lv120. You are able to leave and heal up between each battle and continue later if needed.
Item Shops
A lady in the house under the Battle Arena offers to sell type-boosting items.
A lady in the 1st house left of the Battle Tower offer to sell gems.
A guy in the 2nd house left of the Battle Tower offer to sell competitive items.
A guy in the house by the Tube Challenge offer to sell higher-tier items.
Items
Item
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Location
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Sakura Leaf
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From the guy on the lower left area
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Tube Pass
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Reward after completing the Challenge Championship for the 1st time
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Pokémon
A Hiker will offer to trade his Delta Plusle for a regular Minun.
A Hiker will offer to trade his Delta Minun for a regular Plusle.
Delta Golett is available as a reward of completing the Tube Challenge.
Pokémon
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Location
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Levels
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Rate
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Special Pokémon
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The same as the Traded Pokémon
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One
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The same as the Traded Pokémon
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One
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Only one
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30
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One
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