diff --git a/src/locales/ca-ES/achv.ts b/src/locales/ca-ES/achv.ts
index 6123b735c4e..a05c8b814ab 100644
--- a/src/locales/ca-ES/achv.ts
+++ b/src/locales/ca-ES/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Undefeated",
     description: "Beat the game in classic mode",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "The Original Rival",
diff --git a/src/locales/de/achv.ts b/src/locales/de/achv.ts
index 6c84988883d..3d498d048a7 100644
--- a/src/locales/de/achv.ts
+++ b/src/locales/de/achv.ts
@@ -170,6 +170,11 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Ungeschlagen",
     description: "Beende den klassischen Modus erfolgreich.",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "'Bringe dein Kind mit zur Arbeit'-Tag" ,
+    description: "Beende den klassischen Modus erfolgreich mit mindestens einem nicht entwickeltem Pokémon in deinem Team"
+  },
+
   "MONO_GEN_ONE": {
     name: "Der originale Rivale",
     description: "Schließe die 'Nur 1. Generation' Herausforderung ab.",
@@ -348,6 +353,7 @@ export const PGFachv: AchievementTranslationEntries = {
   "HIDDEN_ABILITY": PGMachv.HIDDEN_ABILITY,
   "PERFECT_IVS": PGMachv.PERFECT_IVS,
   "CLASSIC_VICTORY": PGMachv.CLASSIC_VICTORY,
+  "UNEVOLVED_CLASSIC_VICTORY": PGMachv.UNEVOLVED_CLASSIC_VICTORY,
   "MONO_GEN_ONE": PGMachv.MONO_GEN_ONE,
   "MONO_GEN_TWO": PGMachv.MONO_GEN_TWO,
   "MONO_GEN_THREE": PGMachv.MONO_GEN_THREE,
diff --git a/src/locales/en/achv.ts b/src/locales/en/achv.ts
index 6123b735c4e..a05c8b814ab 100644
--- a/src/locales/en/achv.ts
+++ b/src/locales/en/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Undefeated",
     description: "Beat the game in classic mode",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "The Original Rival",
diff --git a/src/locales/es/achv.ts b/src/locales/es/achv.ts
index ed734f21d0a..e291d93add2 100644
--- a/src/locales/es/achv.ts
+++ b/src/locales/es/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Imbatible",
     description: "Completa el juego en modo clásico.",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "The Original Rival",
diff --git a/src/locales/fr/achv.ts b/src/locales/fr/achv.ts
index d5b80700493..a2d7d2378a1 100644
--- a/src/locales/fr/achv.ts
+++ b/src/locales/fr/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Invaincu",
     description: "Terminer le jeu en mode classique",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Le stagiaire de 3e",
+    description: "Terminer le mode Classique avec au moins un Pokémon non-évolué dans l’équipe."
+  },
 
   "MONO_GEN_ONE": {
     name: "Le rival originel",
@@ -439,6 +443,10 @@ export const PGFachv: AchievementTranslationEntries = {
     name: "Invaincue",
     description: "Terminer le jeu en mode classique",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Le stagiaire de 3e",
+    description: "Terminer le mode Classique avec au moins un Pokémon non-évolué dans l’équipe."
+  },
 
   "MONO_GEN_ONE": {
     name: "Le rival originel",
diff --git a/src/locales/it/achv.ts b/src/locales/it/achv.ts
index e7e35a1a47b..91222b81579 100644
--- a/src/locales/it/achv.ts
+++ b/src/locales/it/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Imbattuto",
     description: "Vinci in modalità classica",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "Rivale Originale",
diff --git a/src/locales/ja/achv.ts b/src/locales/ja/achv.ts
index 3063488c659..7e8d41c9808 100644
--- a/src/locales/ja/achv.ts
+++ b/src/locales/ja/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Undefeated",
     description: "Beat the game in classic mode",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "The Original Rival",
diff --git a/src/locales/ko/achv.ts b/src/locales/ko/achv.ts
index abc0f186fd4..431cb7d3296 100644
--- a/src/locales/ko/achv.ts
+++ b/src/locales/ko/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "무패",
     description: "클래식 모드 클리어",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "우리집 꿈나무",
+    description: "최종 진화형이 아닌 포켓몬을 데리고 클래식 모드 클리어."
+  },
 
   "MONO_GEN_ONE": {
     name: "근본 라이벌",
diff --git a/src/locales/pt_BR/achv.ts b/src/locales/pt_BR/achv.ts
index 78c4da6ae2e..5874616bcdc 100644
--- a/src/locales/pt_BR/achv.ts
+++ b/src/locales/pt_BR/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "Invencível",
     description: "Vença o jogo no modo clássico",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Tire as Crianças da Sala",
+    description: "Vença o jogo no Modo Clássico com pelo menos um membro da equipe não evoluído.."
+  },
 
   "MONO_GEN_ONE": {
 
@@ -440,6 +444,10 @@ export const PGFachv: AchievementTranslationEntries = {
     name: "Invencível",
     description: "Vença o jogo no modo clássico",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
 
diff --git a/src/locales/zh_CN/achv.ts b/src/locales/zh_CN/achv.ts
index a32f244400d..e2355342ab6 100644
--- a/src/locales/zh_CN/achv.ts
+++ b/src/locales/zh_CN/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "战无不胜",
     description: "在经典模式中通关游戏",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "最初的劲敌",
diff --git a/src/locales/zh_TW/achv.ts b/src/locales/zh_TW/achv.ts
index 7c945e794a2..dbd1d44d220 100644
--- a/src/locales/zh_TW/achv.ts
+++ b/src/locales/zh_TW/achv.ts
@@ -169,6 +169,10 @@ export const PGMachv: AchievementTranslationEntries = {
     name: "戰無不勝",
     description: "在經典模式中通關遊戲",
   },
+  "UNEVOLVED_CLASSIC_VICTORY": {
+    name: "Bring Your Child To Work Day",
+    description: "Beat the game in Classic Mode with at least one unevolved party member."
+  },
 
   "MONO_GEN_ONE": {
     name: "最初的勁敵",
diff --git a/src/modifier/modifier-type.ts b/src/modifier/modifier-type.ts
index a6117d09ffe..07a9b74b9ff 100644
--- a/src/modifier/modifier-type.ts
+++ b/src/modifier/modifier-type.ts
@@ -1544,7 +1544,12 @@ const modifierPool: ModifierPool = {
     new WeightedModifierType(modifierTypes.MINT, 4),
     new WeightedModifierType(modifierTypes.RARE_EVOLUTION_ITEM, (party: Pokemon[]) => Math.min(Math.ceil(party[0].scene.currentBattle.waveIndex / 15) * 4, 32), 32),
     new WeightedModifierType(modifierTypes.AMULET_COIN, skipInLastClassicWaveOrDefault(3)),
-    //new WeightedModifierType(modifierTypes.EVIOLITE, (party: Pokemon[]) => party.some(p => ((p.getSpeciesForm(true).speciesId in pokemonEvolutions) || (p.isFusion() && (p.getFusionSpeciesForm(true).speciesId in pokemonEvolutions))) && !p.getHeldItems().some(i => i instanceof Modifiers.EvolutionStatBoosterModifier)) ? 10 : 0),
+    new WeightedModifierType(modifierTypes.EVIOLITE, (party: Pokemon[]) => {
+      if (party[0].scene.gameData.unlocks[Unlockables.EVIOLITE]) {
+        return party.some(p => ((p.getSpeciesForm(true).speciesId in pokemonEvolutions) || (p.isFusion() && (p.getFusionSpeciesForm(true).speciesId in pokemonEvolutions))) && !p.getHeldItems().some(i => i instanceof Modifiers.EvolutionStatBoosterModifier)) ? 10 : 0;
+      }
+      return 0;
+    }),
     new WeightedModifierType(modifierTypes.SPECIES_STAT_BOOSTER, 12),
     new WeightedModifierType(modifierTypes.LEEK, (party: Pokemon[]) => {
       const checkedSpecies = [ Species.FARFETCHD, Species.GALAR_FARFETCHD, Species.SIRFETCHD ];
diff --git a/src/phases.ts b/src/phases.ts
index 39cbbd5ff8b..52537740695 100644
--- a/src/phases.ts
+++ b/src/phases.ts
@@ -65,6 +65,7 @@ import { PlayerGender } from "#enums/player-gender";
 import { Species } from "#enums/species";
 import { TrainerType } from "#enums/trainer-type";
 import { applyChallenges, ChallengeType } from "./data/challenge";
+import { pokemonEvolutions } from "./data/pokemon-evolutions";
 
 const { t } = i18next;
 
@@ -4287,6 +4288,7 @@ export class GameOverPhase extends BattlePhase {
         if (this.victory && newClear) {
           if (this.scene.gameMode.isClassic) {
             firstClear = this.scene.validateAchv(achvs.CLASSIC_VICTORY);
+            this.scene.validateAchv(achvs.UNEVOLVED_CLASSIC_VICTORY);
             this.scene.gameData.gameStats.sessionsWon++;
             for (const pokemon of this.scene.getParty()) {
               this.awardRibbon(pokemon);
@@ -4387,6 +4389,9 @@ export class GameOverPhase extends BattlePhase {
       if (!this.scene.gameData.unlocks[Unlockables.MINI_BLACK_HOLE]) {
         this.scene.unshiftPhase(new UnlockPhase(this.scene, Unlockables.MINI_BLACK_HOLE));
       }
+      if (!this.scene.gameData.unlocks[Unlockables.EVIOLITE] && this.scene.getParty().some(p => p.getSpeciesForm(true).speciesId in pokemonEvolutions)) {
+        this.scene.unshiftPhase(new UnlockPhase(this.scene, Unlockables.EVIOLITE));
+      }
     }
   }
 
diff --git a/src/system/achv.ts b/src/system/achv.ts
index b1f575fb31c..040a48d9a7e 100644
--- a/src/system/achv.ts
+++ b/src/system/achv.ts
@@ -1,6 +1,7 @@
 import { Modifier } from "typescript";
 import BattleScene from "../battle-scene";
 import { TurnHeldItemTransferModifier } from "../modifier/modifier";
+import { pokemonEvolutions } from "#app/data/pokemon-evolutions";
 import i18next from "i18next";
 import * as Utils from "../utils";
 import { PlayerGender } from "#enums/player-gender";
@@ -240,6 +241,8 @@ export function getAchievementDescription(localizationKey: string): string {
     return i18next.t(`${genderPrefix}achv:PERFECT_IVS.description` as ParseKeys);
   case "CLASSIC_VICTORY":
     return i18next.t(`${genderPrefix}achv:CLASSIC_VICTORY.description` as ParseKeys);
+  case "UNEVOLVED_CLASSIC_VICTORY":
+    return i18next.t(`${genderPrefix}achv:UNEVOLVED_CLASSIC_VICTORY.description` as ParseKeys);
   case "MONO_GEN_ONE":
     return i18next.t(`${genderPrefix}achv:MONO_GEN_ONE.description` as ParseKeys);
   case "MONO_GEN_TWO":
@@ -326,6 +329,7 @@ export const achvs = {
   HIDDEN_ABILITY: new Achv("HIDDEN_ABILITY","",  "HIDDEN_ABILITY.description","ability_charm", 75),
   PERFECT_IVS: new Achv("PERFECT_IVS","",  "PERFECT_IVS.description","blunder_policy", 100),
   CLASSIC_VICTORY: new Achv("CLASSIC_VICTORY","",  "CLASSIC_VICTORY.description","relic_crown", 150),
+  UNEVOLVED_CLASSIC_VICTORY: new Achv("UNEVOLVED_CLASSIC_VICTORY", "", "UNEVOLVED_CLASSIC_VICTORY.description", "eviolite", 175, c => c.getParty().some(p => p.getSpeciesForm(true).speciesId in pokemonEvolutions)),
   MONO_GEN_ONE_VICTORY: new ChallengeAchv("MONO_GEN_ONE","",  "MONO_GEN_ONE.description", "ribbon_gen1", 100, c => c instanceof SingleGenerationChallenge && c.value === 1),
   MONO_GEN_TWO_VICTORY: new ChallengeAchv("MONO_GEN_TWO","",  "MONO_GEN_TWO.description", "ribbon_gen2", 100, c => c instanceof SingleGenerationChallenge && c.value === 2),
   MONO_GEN_THREE_VICTORY: new ChallengeAchv("MONO_GEN_THREE","",  "MONO_GEN_THREE.description", "ribbon_gen3", 100, c => c instanceof SingleGenerationChallenge && c.value === 3),
diff --git a/src/system/game-data.ts b/src/system/game-data.ts
index 2cc6ab93c61..8b756735ee6 100644
--- a/src/system/game-data.ts
+++ b/src/system/game-data.ts
@@ -309,7 +309,8 @@ export class GameData {
     this.unlocks = {
       [Unlockables.ENDLESS_MODE]: false,
       [Unlockables.MINI_BLACK_HOLE]: false,
-      [Unlockables.SPLICED_ENDLESS_MODE]: false
+      [Unlockables.SPLICED_ENDLESS_MODE]: false,
+      [Unlockables.EVIOLITE]: false
     };
     this.achvUnlocks = {};
     this.voucherUnlocks = {};
diff --git a/src/system/unlockables.ts b/src/system/unlockables.ts
index d8e7d97edf6..983909373fd 100644
--- a/src/system/unlockables.ts
+++ b/src/system/unlockables.ts
@@ -1,9 +1,11 @@
+import i18next from "i18next";
 import { GameMode, GameModes } from "../game-mode";
 
 export enum Unlockables {
   ENDLESS_MODE,
   MINI_BLACK_HOLE,
-  SPLICED_ENDLESS_MODE
+  SPLICED_ENDLESS_MODE,
+  EVIOLITE
 }
 
 export function getUnlockableName(unlockable: Unlockables) {
@@ -11,8 +13,10 @@ export function getUnlockableName(unlockable: Unlockables) {
   case Unlockables.ENDLESS_MODE:
     return `${GameMode.getModeName(GameModes.ENDLESS)} Mode`;
   case Unlockables.MINI_BLACK_HOLE:
-    return "Mini Black Hole";
+    return i18next.t("modifierType:ModifierType.MINI_BLACK_HOLE.name");
   case Unlockables.SPLICED_ENDLESS_MODE:
     return `${GameMode.getModeName(GameModes.SPLICED_ENDLESS)} Mode`;
+  case Unlockables.EVIOLITE:
+    return i18next.t("modifierType:ModifierType.EVIOLITE.name");
   }
 }