diff --git a/public/audio/bgm/desert.mp3 b/public/audio/bgm/desert.mp3
index febbacc0100..10938f814fe 100644
Binary files a/public/audio/bgm/desert.mp3 and b/public/audio/bgm/desert.mp3 differ
diff --git a/public/audio/bgm/fairy_cave.mp3 b/public/audio/bgm/fairy_cave.mp3
index 4e1c9ea0eb4..32cc3dbaa41 100644
Binary files a/public/audio/bgm/fairy_cave.mp3 and b/public/audio/bgm/fairy_cave.mp3 differ
diff --git a/src/data/trainers/trainer-config.ts b/src/data/trainers/trainer-config.ts
index d29b40e0972..67618df1ddd 100644
--- a/src/data/trainers/trainer-config.ts
+++ b/src/data/trainers/trainer-config.ts
@@ -1865,27 +1865,43 @@ export const trainerConfigs: TrainerConfigs = {
     .setPartyMemberFunc(
       0,
       getRandomPartyMemberFunc([
+        SpeciesId.METAPOD,
+        SpeciesId.LEDYBA,
+        SpeciesId.CLEFFA,
+        SpeciesId.WOOPER,
+        SpeciesId.TEDDIURSA,
+        SpeciesId.REMORAID,
+        SpeciesId.HOUNDOUR,
+        SpeciesId.SILCOON,
         SpeciesId.PLUSLE,
         SpeciesId.VOLBEAT,
-        SpeciesId.PACHIRISU,
-        SpeciesId.SILCOON,
-        SpeciesId.METAPOD,
-        SpeciesId.IGGLYBUFF,
+        SpeciesId.SPINDA,
+        SpeciesId.BONSLY,
         SpeciesId.PETILIL,
-        SpeciesId.EEVEE,
+        SpeciesId.SPRITZEE,
+        SpeciesId.MILCERY,
+        SpeciesId.PICHU,
       ]),
     )
     .setPartyMemberFunc(
       1,
       getRandomPartyMemberFunc(
         [
+          SpeciesId.KAKUNA,
+          SpeciesId.SPINARAK,
+          SpeciesId.IGGLYBUFF,
+          SpeciesId.PALDEA_WOOPER,
+          SpeciesId.PHANPY,
+          SpeciesId.MANTYKE,
+          SpeciesId.ELECTRIKE,
+          SpeciesId.CASCOON,
           SpeciesId.MINUN,
           SpeciesId.ILLUMISE,
-          SpeciesId.EMOLGA,
-          SpeciesId.CASCOON,
-          SpeciesId.KAKUNA,
-          SpeciesId.CLEFFA,
+          SpeciesId.SPINDA,
+          SpeciesId.MIME_JR,
           SpeciesId.COTTONEE,
+          SpeciesId.SWIRLIX,
+          SpeciesId.FIDOUGH,
           SpeciesId.EEVEE,
         ],
         TrainerSlot.TRAINER_PARTNER,
diff --git a/src/field/arena.ts b/src/field/arena.ts
index 06ba6fdd334..6f2310b95c2 100644
--- a/src/field/arena.ts
+++ b/src/field/arena.ts
@@ -895,7 +895,7 @@ export class Arena {
       case BiomeId.CAVE:
         return 14.24;
       case BiomeId.DESERT:
-        return 1.143;
+        return 9.02;
       case BiomeId.ICE_CAVE:
         return 0.0;
       case BiomeId.MEADOW:
@@ -923,7 +923,7 @@ export class Arena {
       case BiomeId.JUNGLE:
         return 0.0;
       case BiomeId.FAIRY_CAVE:
-        return 4.542;
+        return 0.0;
       case BiomeId.TEMPLE:
         return 2.547;
       case BiomeId.ISLAND: