Pokémon Definitive Platinum: 8 badges — Beacon (Volkner, Sunyshore City)

What opens up at this point in the game, and everything you can catch by now that you couldn't before.

Newly reachable

Newly catchable (21)

AbsolAltariaAmpharosBanetteBlisseyDelcattyDusclopsElectabuzzExeggutorFlaaffyGardevoirGengarGrumpigHypnoMagnetonPrimeapeRoseradeStaraptorTreeckoWailmerWailord