Pokémon Platinum / Gym 8 · Electric-type Gym Leader

Volkner

Gym 8 · Electric-type Gym Leader · Sunyshore City

Volkner is Sinnoh’s final Gym Leader and a friend of Elite Four member Flint. His skill has left him frustrated by opponents who cannot challenge him.

Story: Find him at Vista Lighthouse before the Gym battle. Earning the eighth badge opens the final field-move requirement for reaching the Pokémon League.
In the game: First Gym battle in Platinum: Jolteon Lv. 46; Raichu Lv. 46; Luxray Lv. 48; Electivire Lv. 50. Ground attacks are your main type advantage.
Gym puzzle: Rotate the coloured gears to connect walkways across the Gym’s rooms.
Rewards: Win the Beacon Badge and TM57 Charge Beam. The badge allows Waterfall outside battle once you have the HM. These are the first Gym teams, not the later Battleground rematches.

Story spoilers.

Pokémon Platinum · Nintendo DS · 2008 · Original Nintendo DS release; not Brilliant Diamond or Shining Pearl. · Picture: Original Nintendo DS-era Sinnoh Gym Leader sprite.