diff --git a/src/data/pokemon-evolutions.ts b/src/data/pokemon-evolutions.ts
index 08a074665f7..8bfc7cbfed4 100644
--- a/src/data/pokemon-evolutions.ts
+++ b/src/data/pokemon-evolutions.ts
@@ -267,7 +267,7 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.HITMONTOP, 20, null, new SpeciesEvolutionCondition((p: Pokemon) => p.stats[Stat.ATK] === p.stats[Stat.DEF]))
   ],
   [Species.KOFFING]: [
-    new SpeciesEvolution(Species.GALAR_WEEZING, 35, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.CITY)),
+    new SpeciesEvolution(Species.GALAR_WEEZING, 35, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.CITY), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.WEEZING, 35, null, null)
   ],
   [Species.RHYHORN]: [
@@ -416,7 +416,11 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.LINOONE, 20, null, null)
   ],
   [Species.WURMPLE]: [
-    new SpeciesEvolution(Species.SILCOON, 7, null, new SpeciesEvolutionCondition((p: Pokemon) => Utils.randInt(2) === 0)), // TODO: Improve these conditions
+    new SpeciesEvolution(Species.SILCOON, 7, null, new SpeciesEvolutionCondition((p: Pokemon) => {
+      let ret: boolean;
+      p.scene.executeWithSeedOffset(() => ret = !Utils.randSeedInt(2), p.id);
+      return ret;
+    })), // TODO: Improve these conditions
     new SpeciesEvolution(Species.CASCOON, 7, null, null)
   ],
   [Species.SILCOON]: [
@@ -809,7 +813,7 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.KINGAMBIT, 64, null, null)
   ],
   [Species.RUFFLET]: [
-    new SpeciesEvolution(Species.HISUI_BRAVIARY, 54, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.LONG),
+    new SpeciesEvolution(Species.HISUI_BRAVIARY, 54, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.BRAVIARY, 54, null, null)
   ],
   [Species.VULLABY]: [
@@ -895,15 +899,15 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.AURORUS, 39, null, new SpeciesEvolutionCondition((p: Pokemon) => !p.scene.arena.isDaytime()), SpeciesWildEvolutionDelay.MEDIUM)
   ],
   [Species.GOOMY]: [
-    new SpeciesEvolution(Species.HISUI_SLIGGOO, 40, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.LONG),
+    new SpeciesEvolution(Species.HISUI_SLIGGOO, 40, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.SLIGGOO, 40, null, null)
   ],
   [Species.SLIGGOO]: [
-    new SpeciesEvolution(Species.HISUI_GOODRA, 54, null, new SpeciesEvolutionCondition((p: Pokemon) => [ WeatherType.RAIN, WeatherType.HEAVY_RAIN ].indexOf(p.scene.arena.weather?.weatherType || WeatherType.NONE) > -1 && p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.VERY_LONG),
+    new SpeciesEvolution(Species.HISUI_GOODRA, 54, null, new SpeciesEvolutionCondition((p: Pokemon) => [ WeatherType.RAIN, WeatherType.HEAVY_RAIN ].indexOf(p.scene.arena.weather?.weatherType || WeatherType.NONE) > -1 && p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.GOODRA, 50, null, new SpeciesEvolutionCondition((p: Pokemon) => [ WeatherType.RAIN, WeatherType.HEAVY_RAIN ].indexOf(p.scene.arena.weather?.weatherType || WeatherType.NONE) > -1), SpeciesWildEvolutionDelay.LONG)
   ],
   [Species.BERGMITE]: [
-    new SpeciesEvolution(Species.HISUI_AVALUGG, 37, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.LONG),
+    new SpeciesEvolution(Species.HISUI_AVALUGG, 37, null, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.AVALUGG, 37, null, null)
   ],
   [Species.NOIBAT]: [
@@ -1306,6 +1310,12 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.FARIGIRAF, 1, null, new SpeciesEvolutionCondition((p: Pokemon) => p.moveset.filter(m => m.moveId === Moves.TWIN_BEAM).length > 0), SpeciesWildEvolutionDelay.VERY_LONG)
   ],
   [Species.DUNSPARCE]: [
+    new SpeciesFormEvolution(Species.DUDUNSPARCE, '', 'three-segment', 1, null, new SpeciesEvolutionCondition((p: Pokemon) => {
+      let ret = false;
+      if (p.moveset.filter(m => m.moveId === Moves.HYPER_DRILL).length > 0)
+        p.scene.executeWithSeedOffset(() => ret = !Utils.randSeedInt(4), p.id);
+      return ret;
+    }), SpeciesWildEvolutionDelay.VERY_LONG),
     new SpeciesEvolution(Species.DUDUNSPARCE, 1, null, new SpeciesEvolutionCondition((p: Pokemon) => p.moveset.filter(m => m.moveId === Moves.HYPER_DRILL).length > 0), SpeciesWildEvolutionDelay.VERY_LONG)
   ],
   [Species.GLIGAR]: [
@@ -1342,7 +1352,7 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.SUDOWOODO, 1, null, new SpeciesEvolutionCondition((p: Pokemon) => p.moveset.filter(m => m.moveId === Moves.MIMIC).length > 0), SpeciesWildEvolutionDelay.MEDIUM)
   ],
   [Species.MIME_JR]: [
-    new SpeciesEvolution(Species.GALAR_MR_MIME, 1, null, new SpeciesEvolutionCondition((p: Pokemon) => p.moveset.filter(m => m.moveId === Moves.MIMIC).length > 0 && p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.MEDIUM),
+    new SpeciesEvolution(Species.GALAR_MR_MIME, 1, null, new SpeciesEvolutionCondition((p: Pokemon) => p.moveset.filter(m => m.moveId === Moves.MIMIC).length > 0 && p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.MR_MIME, 1, null, new SpeciesEvolutionCondition((p: Pokemon) => p.moveset.filter(m => m.moveId === Moves.MIMIC).length > 0), SpeciesWildEvolutionDelay.MEDIUM)
   ],
   [Species.MANTYKE]: [
@@ -1364,7 +1374,7 @@ export const pokemonEvolutions: PokemonEvolutions = {
     new SpeciesEvolution(Species.WHIMSICOTT, 1, EvolutionItem.SUN_STONE, null, SpeciesWildEvolutionDelay.MEDIUM)
   ],
   [Species.PETILIL]: [
-    new SpeciesEvolution(Species.HISUI_LILLIGANT, 1, EvolutionItem.SUN_STONE, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.LONG),
+    new SpeciesEvolution(Species.HISUI_LILLIGANT, 1, EvolutionItem.SUN_STONE, new SpeciesEvolutionCondition((p: Pokemon) => p.scene.arena.biomeType === Biome.RUINS), SpeciesWildEvolutionDelay.NEVER),
     new SpeciesEvolution(Species.LILLIGANT, 1, EvolutionItem.SUN_STONE, null, SpeciesWildEvolutionDelay.MEDIUM)
   ],
   [Species.BASCULIN]: [
diff --git a/src/data/weather.ts b/src/data/weather.ts
index 74eb05032d6..47823635785 100644
--- a/src/data/weather.ts
+++ b/src/data/weather.ts
@@ -234,9 +234,9 @@ export function getRandomWeatherType(biome: Biome): WeatherType {
       break;
     case Biome.BEACH:
       weatherPool = [
-        { weatherType: WeatherType.NONE, weight: 5 },
-        { weatherType: WeatherType.SUNNY, weight: 8 },
-        { weatherType: WeatherType.RAIN, weight: 2 }
+        { weatherType: WeatherType.NONE, weight: 8 },
+        { weatherType: WeatherType.SUNNY, weight: 5 },
+        { weatherType: WeatherType.RAIN, weight: 3 }
       ];
       break;
     case Biome.LAKE: