In the new remakes Pokemon Brilliant Diamond and Shining Pearl, players can find hundreds of Pokemon to fill their Pokedex with. But there are some that players should grab in Brilliant Diamond and Shining Pearl's Grand Underground before they leave to give them the best possible teams. Here is a look at every Pokemon players can find.

In Pokemon Brilliant Diamond and Shining Pearl, the Grand Underground is a massive network of underground caves that players can explore. Each cave is themed or is a combination of two themes. Most Pokemon found in each cave will fit the overall theme of the cave, but there are always a few odd ones out.

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Updated by Kirkland Fortner, March 6, 2022: As seen in the lists below, there are tons of Pokemon to be found and captured in the Grand Underground. However, some of these creatures have traits that make them stand out from the crowd. That said, we are taking the opportunity to point out the most noteworthy Pokemon from each list. This addition can be found after the list under each location.

The Grand Underground in Brilliant Diamond and Shining Pearl

The caverns, also known as hideaways, that players can find in the Underground are:

  • The Dazzling Cave: Ghost and Fairy-type Pokemon
  • The Fountainspring Cave: Water
  • The Grasslands Cave: Grass
  • The Icy Cave: Ice
  • The Riverbank Cave: Grass and Water
  • The Rocky Cave: Rock
  • The Sandsear Cave: Fire and Rock
  • The Spacious Cave: Normal
  • The Swampy Cave: Poison
  • The Volcanic Cave: Fire; look in this cave for the best fire-type Pokemon in Brilliant Diamond and Shining Pearl
  • The Whiteout Cave: Snow

Here is a map of the Grand Underground and each of these cave locations:

Pokemon-Brilliant-Diamond-Shining-Pearl-Grand-Underground-1

Pokemon Available in the Grand Underground to Begin With

Not all the Grand Underground Pokemon will be available at the beginning of the game. Some have to be unlocked by playing through the game and attaining certain milestones. After that, the new Pokemon will appear in the Underground the next time the player visits. However, there are a large number available at the beginning of the game, and these are:

  • Absol: Grassland, Spacious, Dazzling
  • Bidoof: Grassland, Riverbank, Spacious, Fountainspring
  • Budew: Grassland, Riverbank, Spacious
  • Buizel: Riverbank, Fountainspring
  • Buneary: Grassland, Riverbank, Spacious, Whiteout
  • Cascoon (Shining Pearl exclusive Pokemon): Grassland, Riverbank
  • Cherubi: Grassland
  • Combee: Grassland
  • Croagunk: Riverbank, Swampy
  • Duskull: Dazzling
  • Elekid (Brilliant Diamond exclusive Pokemon): Dazzling, Whiteout
  • Gastly: Dazzling
  • Gastrodon: Fountainspring
  • Geodude: Rocky, Spacious, Volcanic
  • Glalie: Whiteout, Icy
  • Gligar (BD): Swampy, Rocky
  • Houndoom: Spacious, Dazzling, Volcanic, Sandsear
  • Kricketot: Grassland, Riverbank, Spacious
  • Lickitung: Fountainspring, Spacious, Riverbank, Swampy
  • Machop: Spacious, Grassland, Whiteout
  • Magby (SP): Volcanic, Sandsear
  • Magnemite: Spacious, Whiteout, Icy
  • Misdreavus: Dazzling
  • Murkrow (BD): Spacious, Grassland, Riverbank
  • Onix: Rocky, Volcanic, Sandsear
  • Pachirisu: Spacious, Whiteout
  • Pinsir (SP): Grassland, Riverbank
  • Psyduck: Spacious, Fountainspring, Riverbank
  • Ralts: Fountainspring, Dazzling
  • Rhyhorn: Spacious, Rocky, Sandsear
  • Roselia: Grassland, Swampy
  • Scyther (BD): Grassland, Riverbank
  • Shellos: Fountainspring
  • Shinx: Spacious, Grassland, Whiteout
  • Silcoon: Grassland, Riverbank
  • Skorupi: Swampy, Rocky, Volcanic, Sandsear
  • Smoochum: Dazzling, Whiteout, Icy
  • Snorunt: Whiteout, Icy
  • Swablu: Spacious, Fountainspring, Whiteout, Icy
  • Swinub: Swampy, Whiteout, Icy
  • Togepi: Fountainspring, Dazzling
  • Wurmple: Grassland, Riverbank
  • Zubat: Spacious, Grassland, Swampy
pokemon brilliant diamond shining pearl houndoom

Out of these Pokemon that can be found in the beginning, Houndoom is the most noteworthy. Fire-types are difficult to come by in Sinnoh, and Houndoom's good attacking stats make help it rise above the crowd. Additionally, its Speed is excellent, and its secondary Dark-typing gives it a healthy number of resistances and an immunity making it a solid choice. Houndoom's abilities aren't all that impressive, though FlashFire is the one that the player will want to go for, as additional immunities are never a bad thing.

Pokemon Available in the Grand Underground After TM96 Strength

hoothoot pokemon anime

After defeating the first two gyms of Brilliant Diamond or Shining Pearl, players can find their way to Hearthome City and unlock TM96 Strength. This will unlock a lot of new Pokemon available in the Underground.

  • Barboach: Grassland, Riverbank, Fountainspring, Swampy
  • Bibarel: Fountainspring, Riverbank, Spacious
  • Bronzor: Dazzling, Icy, Rocky
  • Chingling: Spacious, Dazzling
  • Golbat: Grassland, Spacious, Swampy
  • Hoothoot: Grassland, Riverbank, Spacious, Fountainspring
  • Meditite: Dazzling, Whiteout
  • Ponyta: Volcanic, Sandsear
  • Skuntank (BD): Spacious, Grassland, Riverbank
  • Stunky (BD): Spacious, Grassland, Riverbank
Pokemon Brilliant Diamond Shining Pearl blurred promotional artwork and barboach

Barboach is definitely worth looking into among these Pokemon, along with its evolution, Whiscash. They both have an excellent Water/Ground type combination, giving them only one weakness, Grass. They also have four resistances, and an immunity to Electric-type attacks. Ground is also an excellent attacking type, giving them some offensive power as well. The Abilities aren't too great, but Oblivious' ability to block Intimidate can come in handy.

Pokemon Available in the Grand Underground After Defog

Once players have unlocked Defog in Brilliant Diamond or Shining Pearl, another set of Pokemon becomes available.

  • Aipom: Spacious
  • Girafarig: Dazzling
  • Graveler: Spacious. Rocky, Volcanic
  • Hippopotas: Rocky, Sandsear, Sandsear
  • Kadabra: Dazzling
  • Machoke: Spacious, Grassland, Whiteout
  • Munchlax: Spacious, Grassland, Riverbank, Whiteout
  • Purugly (SP): Spacious, Grassland, Riverbank
  • Quagsire: Fountainspring, Swampy
  • Wingull: Spacious, Fountainspring, Riverbank
  • Wooper: Fountainspring, Swampy
Munchlax & Professor Burnette

Munchlax is definitely the highlight of this list. As far as Baby Pokemon go, Munchlax is certainly one of the better ones, as it has incredibly high HP and good Attack and Special Defense. Pure Normal is a good type, and it also gets access to the great Ability that is Thick Fat, further bolstering its defenses. However, the real reason why it's so noteworthy is that the Grand Underground is by far the easiest place to catch one. A player would otherwise have to either breed Snorlax holding a Full Incense or catch one off of specific Honey Trees with a 1% encounter rate.

Pokemon Available in the Grand Underground After Badge 7

Pokemon Pikachu Mr. Mime
  • Glameow (SP): Riverbank, Fountainspring
  • Gible: Fountainspring, Riverbank
  • Luxio: Spacious, Whiteout
  • Mr. Mime: Dazzling, Whiteout, Icy
  • Pelipper: Spacious, Fountainspring, Riverbank
  • Sneasel: Whiteout, Icy
  • Snover: Whiteout, Icy
  • Tentacool: Fountainspring, Riverbank, Swampy
  • Tentacruel: Fountainspring, Riverbank, Swampy
Pelipper from Pokemon Anime Cropped

Pelipper is interesting because it's one of very few Pokemon that can have the Ability Drizzle, causing it to Rain whenever it is sent out. Rain is a very powerful weather condition, as it causes Water-type moves to deal 50% more damage than they normally would, and it makes the moves Hurricane and Thunder never miss. Pelipper is capable of learning Hurricane. Combine this with its Flying-type STAB and its decent Special Attack, and it's capable of doing some heavy damage. Water/Flying is also a very good type combination. It has six resistances, an immunity to Ground, and only to weaknesses to Rock and Electric. The Electric weakness is a 4x one though, so players do need to beware of that.

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Pokemon Available in the Grand Underground After TM99 Waterfall

A few new Pokemon become available upon reaching this milestone, but one in particular is noteworthy here.

  • Gabite: Fountainspring, Riverbank
  • Mantyke: Spacious, Riverbank
  • Octillery: Fountainspring, Riverbank
  • Whiscash: Fountainspring, Riverbank, Swampy
pokemon tcg gible gabite

Gabite and its evolution, Garchomp, are noteworthy for their power alone. With Garchomp's massive 130 Attack stat, high Speed, and the powerful offensive combination that is Ground/Dragon, it's a force to be reckoned with. This type combination isn't as strong defensively though, as it comes with only three resistances, one immunity to Electric, and a debilitating 4x Ice-type weakness. Still, its attack power is incredible. A player can easily get Gabite to evolve into Garchomp this late into the game too, because, unlike most Pseudo-Legendaries, it evolves at only level 48.

Pokemon Available in the Grand Underground After National Pokedex

Ignoring Pokedex - Pokemon Things That Ruin Playthrough

There are also plenty of Pokemon that will be available in Brilliant Diamond and Shining Pearl's Grand Underground after unlocking the National Pokedex. Some of these Pokemon are available earlier in the Underground, but they have either catch rates significantly lower than 1%, or they are available in one of the above tiers but only for one of the two versions of this game.

  • Ariados - Grassland, Swampy
  • Aron - Whiteout, Icy, Rocky
  • Bagon (SP) - Spacious, Dazzling
  • Baltoy - Dazzling, Rocky
  • Banette - Dazzling
  • Beldum - Whiteout, Icy, Rocky
  • Bellsprout - Grassland, Riverbank, Swampy
  • Bulbasaur - Grassland, Riverbank, Swampy
  • Cacnea - Grassland, Swampy, Rocky
  • Cacturne - Grassland, Swampy, Rocky
  • Camerupt - Rocky, Volcanic, Sandsear
  • Carvanha - Fountainspring, Riverban
  • Caterpie (BD) - Spacious, Grassland, Riverbank, Swampy
  • Charmander - Volcanic, Sandsear
  • Chikorita - Grassland, Riverbank
  • Chimchar - Volcanic, Sandsear
  • Chinchou - Fountainspring, Icy
  • Clamperl - Fountainspring, Riverbank
  • Corphish - Spacious, Fountainspring, Riverbank
  • Corsola - Fountainspring, Riverbank
  • Crawdaunt - Spacious, Fountainspring, Riverbank
  • Cubone - Riverbank, Dazzling, Rocky
  • Cyndaquil - Volcanic, Sandsear
  • Delibird - Whiteout, Icy
  • Dewgong - Fountainspring, Whiteout, Icy
  • Ditto - Dazzling
  • Doduo - Spacious
  • Dratini - Fountainspring
  • Drowzee - Dazzling
  • Dusclops - Dazzling
  • Duskull - Dazzling
  • Ekans (BD) - Grassland, Riverbank, Swampy
  • Farfetch'd - Spacious, Grassland, Fountainspring
  • Flaaffy - Grassland, Whiteout
  • Furret - Spacious, Whiteout, Rocky, Volcanic
  • Gligar (BD) - Rocky
  • Gloom - Spacious, Grassland, Riverbank, Swampy
  • Growlithe (BD) - Spacious, Volcanic, Sandsear
  • Grimer - Swampy, Dazzling
  • Hoppip - Grassland
  • Horsea - Fountainspring, Riverbank
  • Illumise - Grassland, Dazzling
  • Kecleon (BD) - Grassland, Riverbank
  • Kirlia - Dazzling
  • Krabby - Spacious, Dazzling
  • Lairon - Whiteout, Icy, Rocky
  • Lanturn - Fountainspring, Icy
  • Larvitar (BD) - Rock
  • Ledian - Grassland, Fountainspring, Riverbank, Swampy
  • Lombre (SP) - Grassland, Fountainspring, Riverbank
  • Lotad (SP) - Grassland, Fountainspring, Riverbank
  • Lunatone (SP) - Riverbank, Dazzling
  • Magcargo - Volcanic, Sandsear
  • Mankey - Spacious, Grassland
  • Mareep - GrasslandWhiteout
  • Mawile (BD) - Dazzling
  • Mightyena - Spacious, Dazzling, Icy
  • Miltank - Spacious, Grassland
  • Mudkip - Fountainspring, Riverbank
  • Natu - Spacious, Dazzling
  • Nidoran (male and female) - Grassland, Riverbank, Swampy, Dazzling
  • Nidorina - Grassland, Riverbank, Swampy, Dazzling
  • Nidorino - Grassland, Riverbank, Swampy, Dazzling
  • Nincada - Grassland, Riverbank, Swampy
  • Numel - Rocky, Volcanic, Sandsear
  • Nuzleaf (BD) - Grassland, Riverbank
  • Oddish - Spacious, Grassland, Riverbank, Swampy
  • Paras - Grassland, Swampy
  • Phanpy - Rocky
  • Pineco - Grassland, Swampy
  • Pinsir - Riverbank
  • Piplup - Fountainspring, Riverbank
  • Poliwag - Grassland, Fountainspring, Riverbank
  • Poliwhirl - Grassland, Fountainspring, Riverbank
  • Poochyena - Spacious, Dazzling, Icy
  • Pupitar - Rocky
  • Primeape - Spacious, Grassland
  • Qwilfish - Fountainspring, Riverbank, Swampy
  • Raticate - Spacious, Grassland, Riverbank
  • Rattata - Spacious, Grassland, Riverbank
  • Rhydon - Spacious, Rocky, Sandsear
  • Sableye (SP) - Dazzling
  • Sandshrew (SP) - Spacious, Rocky, Sandsear
  • Sandslash (SP) - Spacious, Rocky, Sandsear
  • Sealeo - Whiteout, Icy
  • Seedot (BD) - Grassland, Riverbank
  • Seel - Fountainspring, Whiteout, Icy
  • Sentret - Spacious, Whiteout, Rocky, Volcanic
  • Seviper (SP) - Grassland, Swampy, Dazzling
  • Shellder - Fountainspring, Riverbank
  • Shelgon (SP) - Spacious, Dazzling
  • Shuckle - Grassland, Riverbank, Rocky
  • Skiploom - Grassland
  • Skitty - Spacious
  • Slowpoke (SP) - Spacious, Grassland, Fountainspring, Riverbank, Dazzling
  • Slugma - Volcanic, Sandsear
  • Snubbull - Dazzling
  • Spheal - Whiteout, Icy
  • Solrock (BD) - Riverbank, Dazzling
  • Squirtle - Fountainspring, Riverbank
  • Staryu - Fountainspring, Riverbank, Icy
  • Sunkern - Grassland
  • Surskit - Fountainspring, Riverbank
  • Tangela - Swampy
  • Tangrowth - Swampy
  • Tauros - Spacious, Grassland, Fountainspring, Riverbank, Whiteout, Icy, Rocky
  • Teddiursa (SP) - Spacious, Grassland, Whiteout, Icy, Rocky
  • Torchic - Volcanic, Sandsear
  • Torkoal - Sandsear
  • Totodile - Fountainspring, Riverbank
  • Trapinch - Rocky, Sandsear
  • Treecko - Grassland, Riverbank
  • Tropius - Grassland, Swampy
  • Turtwig - Riverbank
  • Tyrogue - Spacious, Grassland, Riverbank, Whiteout
  • Venomoth - Spacious, Grassland, Riverbank, Swampy
  • Venonat - Spacious, Grassland, Riverbank, Swampy
  • Vibrava - Rocky
  • Volbeat - Dazzling
  • Voltorb - Spacious, Dazzling
  • Vulpix (SP) - Spacious, Volcanic, Sandsear
  • Walrein - Whiteout, Icy
  • Weedle (SP) - Spacious, Grassland, Riverbank, Swampy
  • Weepinbell - Grassland, Riverbank, Swampy
  • Weezing - SwampyWobbuffet - Dazzling
  • Zangoose (BD) - Grassland, Swampy, Dazzling
  • Zigzagoon - Spacious, Rocky
Pokemon Tangrowth outside

There are several Pokemon here that stand out for various reasons. Here is a very brief overview of the noteworthy ones:

  • Players can get the other Starters here (Turtwig, Chimchar, and Piplup) without needing to trade.
  • Larvitar, Beldum, and Shelgon are all great picks for the Battle Tower, as each of them has a final evolution that boasts an immense amount of strength
  • This is the only place in the game where Tangela/Tangrowth appears. So, if this is one of the player's favorites, they have to grab them in the Underground.

Pokemon Brilliant Diamond and Pokemon Shining Pearl are available on the Nintendo Switch.

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Source: YouTube