diff --git a/lang/en.json b/lang/en.json
index 461653f..157a274 100644
--- a/lang/en.json
+++ b/lang/en.json
@@ -333,6 +333,9 @@
     "CharacterNamePlaceholder": "Character Name",
     "ProfilePlaceholder": "Profile",
     "none": "None",
+    "all_characters": "All characters",
+    "no_group": "No group",
+    "include_in_phase": "Include in this phase",
     "bonuses": "Bonuses",
     "choose_ability": "Choose Ability",
     "choose_skill": "Choose Skill",
@@ -469,7 +472,7 @@
     "mode_survie": "Survival",
     "mode_cauchemar": "Nightmare",
     "mode_apocalypse": "Apocalypse",
-    "evolution_buy_hint": "The purchase consumes and erases all accumulated Evolution dice. Limits: Survival 5D, Nightmare 6D, Apocalypse 7D total. Level 3/4 Mutations are forbidden in Survival; only one level 4 Mutation.",
+    "evolution_buy_hint": "The purchase consumes a number of Evolution dice equal to the chosen level (the remainder is kept). Limits: Survival 5D, Nightmare 6D, Apocalypse 7D total. Level 3/4 Mutations are forbidden in Survival; only one level 4 Mutation.",
     "buy_evolution_done": "Adaptation/Mutation acquired. Evolution dice erased.",
     "error_evolution_no_name": "Provide a name for the Adaptation/Mutation.",
     "error_evolution_invalid_level": "Invalid level (1 to 4).",
diff --git a/lang/fr.json b/lang/fr.json
index 5a657e9..84c1a7e 100644
--- a/lang/fr.json
+++ b/lang/fr.json
@@ -365,6 +365,9 @@
     "choose_ability": "Choisissez une caractéristique",
     "choose_skill": "Choisissez une compétence",
     "none": "Aucun",
+    "all_characters": "Tous les personnages",
+    "no_group": "Sans groupe",
+    "include_in_phase": "Inclure dans cette phase",
     "total": "Total",
     "bonuses": "Bonus",
     "handicap": "Handicap",
@@ -452,7 +455,7 @@
     "mode_survie": "Survie",
     "mode_cauchemar": "Cauchemar",
     "mode_apocalypse": "Apocalypse",
-    "evolution_buy_hint": "L'achat consomme et efface tous les Dés d'Évolution accumulés. Limites : Survie 5D, Cauchemar 6D, Apocalypse 7D au total. Mutations 3D/4D interdites en Mode Survie ; une seule Mutation à 4D.",
+    "evolution_buy_hint": "L'achat consomme un nombre de Dés d'Évolution égal au niveau choisi (le reste est conservé). Limites : Survie 5D, Cauchemar 6D, Apocalypse 7D au total. Mutations 3D/4D interdites en Mode Survie ; une seule Mutation à 4D.",
     "buy_evolution_done": "Adaptation/Mutation acquise. Dés d'Évolution effacés.",
     "error_evolution_no_name": "Indiquez un nom pour l'Adaptation/Mutation.",
     "error_evolution_invalid_level": "Niveau invalide (1 à 4).",
diff --git a/module/system/dialogs/buyEvolutionDialog.mjs b/module/system/dialogs/buyEvolutionDialog.mjs
index 3b8c9c5..c1f035f 100644
--- a/module/system/dialogs/buyEvolutionDialog.mjs
+++ b/module/system/dialogs/buyEvolutionDialog.mjs
@@ -5,8 +5,8 @@ const { HandlebarsApplicationMixin } = foundry.applications.api;
 /**
  * Dialogue d'achat d'une Adaptation/Mutation avec les Dés d'Évolution
  * accumulés. Vérifie le coût (niveau 1-4), la limite du Mode de jeu et les
- * restrictions sur les Mutations ; en cas de succès, crée l'item et efface
- * les Dés d'Évolution accumulés.
+ * restrictions sur les Mutations ; en cas de succès, crée l'item et consomme
+ * un nombre de Dés d'Évolution égal au niveau choisi.
  */
 export default class BuyEvolutionDialog extends HandlebarsApplicationMixin(foundry.applications.api.ApplicationV2) {
 
@@ -61,7 +61,7 @@ export default class BuyEvolutionDialog extends HandlebarsApplicationMixin(found
     };
     const levels = [];
     for (let value = 1; value <= 4; value++) {
-      levels.push({ value, cost: value });
+      levels.push({ value });
     }
     return {
       evolutionDice: actor.system?.experience?.evolution || 0,
@@ -73,6 +73,18 @@ export default class BuyEvolutionDialog extends HandlebarsApplicationMixin(found
     };
   }
 
+  async _onRender() {
+    this.element.querySelectorAll("[data-roll]").forEach(inp => inp.addEventListener("change", () => this.#updateUI()));
+    this.#updateUI();
+  }
+
+  /** Met à jour le total des niveaux « après achat » selon le niveau sélectionné. */
+  #updateUI() {
+    const cost = parseInt(this.element.querySelector("#evolution-level")?.value, 10) || 0;
+    const el = this.element.querySelector("#evolution-total-value");
+    if (el) el.textContent = `${VermineExperience.evolutionTotalLevels(this.#actor) + cost}D`;
+  }
+
   static async #onCancel(event, target) {
     this.close();
   }
@@ -102,12 +114,12 @@ export default class BuyEvolutionDialog extends HandlebarsApplicationMixin(found
         mutation
       }
     }]);
-    // N'efface les Dés d'Évolution que si l'item a bien été créé.
+    // Ne consomme que le coût du niveau choisi (Règles p. 116-117 : coût = niveau).
     if (!created || created.length === 0) {
       ui.notifications.warn(game.i18n.localize("VERMINE.error_evolution_create"));
       return;
     }
-    await actor.update({ "system.experience.evolution": 0 });
+    await actor.update({ "system.experience.evolution": Math.max(0, (actor.system?.experience?.evolution || 0) - cost) });
 
     ui.notifications.info(game.i18n.localize("VERMINE.buy_evolution_done"));
     this.close();
diff --git a/module/system/dialogs/experiencePhaseDialog.mjs b/module/system/dialogs/experiencePhaseDialog.mjs
index ef60b48..206d597 100644
--- a/module/system/dialogs/experiencePhaseDialog.mjs
+++ b/module/system/dialogs/experiencePhaseDialog.mjs
@@ -48,13 +48,18 @@ export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(fo
         if (!memberOf.has(id)) memberOf.set(id, g.id);
       }
     }
+    const groupById = new Map(groups.map(g => [g.id, g]));
     return {
-      characters: characters.map(a => ({
-        id: a.id,
-        name: a.name,
-        dice: a.system?.experience?.dice || 0,
-        groupId: memberOf.get(a.id) || ""
-      })),
+      characters: characters.map(a => {
+        const groupId = memberOf.get(a.id) || "";
+        return {
+          id: a.id,
+          name: a.name,
+          dice: a.system?.experience?.dice || 0,
+          groupId,
+          groupName: groupId ? groupById.get(groupId)?.name : ""
+        };
+      }),
       groups: groups.map(a => ({
         id: a.id,
         name: a.name,
@@ -72,6 +77,9 @@ export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(fo
   async _onRender(context, options) {
     this.element.querySelectorAll("[data-roll]").forEach(inp => inp.addEventListener("change", () => this.#updateUI()));
     this.element.querySelector("#group-select")?.addEventListener("change", () => this.#updateGroupFilter());
+    this.element.querySelectorAll("[name^='include-']").forEach(cb =>
+      cb.addEventListener("click", event => event.stopPropagation())
+    );
     this.#updateUI();
     this.#updateGroupFilter();
   }
@@ -84,11 +92,16 @@ export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(fo
     if (el) el.textContent = `${danger + discoveries + duration}D`;
   }
 
-  /** Filtre les personnages selon le groupe sélectionné (vide = tous). */
+  /** Filtre les personnages selon le groupe sélectionné (vide = tous, "none" = sans groupe). */
   #updateGroupFilter() {
     const groupId = this.element.querySelector("#group-select")?.value || "";
     for (const row of this.element.querySelectorAll("[data-character-id]")) {
-      const show = !groupId || row.dataset.groupId === groupId;
+      const rowGroupId = row.dataset.groupId || "";
+      const show = groupId === ""
+        ? true
+        : groupId === "none"
+          ? rowGroupId === ""
+          : rowGroupId === groupId;
       row.hidden = !show;
     }
   }
@@ -102,8 +115,8 @@ export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(fo
       + (parseInt(this.element.querySelector("#collective-discoveries")?.value, 10) || 0)
       + (parseInt(this.element.querySelector("#collective-duration")?.value, 10) || 0);
 
-    const groupId = this.element.querySelector("#group-select")?.value || null;
-    if (groupId) {
+    const groupId = this.element.querySelector("#group-select")?.value || "";
+    if (groupId && groupId !== "none") {
       const group = game.actors.get(groupId);
       if (group && collective > 0) {
         const current = group.system?.experience?.dice || 0;
@@ -121,8 +134,11 @@ export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(fo
 
     const results = [];
     for (const row of this.element.querySelectorAll("[data-character-id]")) {
-      // Quand un groupe précis est choisi, ne récompenser que ses membres.
-      if (groupId && row.dataset.groupId !== groupId) continue;
+      // Filtre par groupe sélectionné (vide = tous, "none" = sans groupe)
+      const rowGroupId = row.dataset.groupId || "";
+      if (groupId === "none" ? rowGroupId !== "" : groupId !== "" && rowGroupId !== groupId) continue;
+      // Case « Inclure » décochée → personnage exclu de cette phase
+      if (!row.querySelector(`[name="include-${row.dataset.characterId}"]`)?.checked) continue;
       const id = row.dataset.characterId;
       const actor = game.actors.get(id);
       if (!actor) continue;
@@ -164,7 +180,7 @@ export default class ExperiencePhaseDialog extends HandlebarsApplicationMixin(fo
     }
 
     const lines = [`${game.i18n.localize("VERMINE.experience_phase")} +1`];
-    if (groupId) {
+    if (groupId && groupId !== "none") {
       const group = game.actors.get(groupId);
       lines.push(`${group?.name ?? ""} (${game.i18n.localize("VERMINE.collective")}): +${collective}D`);
     }
diff --git a/templates/dialogs/buy-evolution-dialog.hbs b/templates/dialogs/buy-evolution-dialog.hbs
index 253ab27..7591779 100644
--- a/templates/dialogs/buy-evolution-dialog.hbs
+++ b/templates/dialogs/buy-evolution-dialog.hbs
@@ -15,7 +15,7 @@
     <label class="label" for="evolution-level">{{ localize 'VERMINE.evolution_level' }}</label>
     <select class="info-value" data-roll="true" id="evolution-level" name="evolution-level">
       {{#each levels}}
-      <option value="{{ this.value }}">{{ this.value }}D — {{ this.cost }}D</option>
+      <option value="{{ this.value }}">{{ this.value }}D</option>
       {{/each}}
     </select>
   </div>
diff --git a/templates/dialogs/experience-phase-dialog.hbs b/templates/dialogs/experience-phase-dialog.hbs
index b638d01..e94741b 100644
--- a/templates/dialogs/experience-phase-dialog.hbs
+++ b/templates/dialogs/experience-phase-dialog.hbs
@@ -36,7 +36,8 @@
     <div class="flexrow bonus-item">
       <label class="label" for="group-select">{{ localize 'VERMINE.collective_group' }}</label>
       <select class="info-value" id="group-select" name="group-select">
-        <option value="">{{ localize 'VERMINE.none' }}</option>
+        <option value="">{{ localize 'VERMINE.all_characters' }}</option>
+        <option value="none">{{ localize 'VERMINE.no_group' }}</option>
         {{#each groups}}
         <option value="{{ this.id }}">{{ this.name }} ({{ this.dice }}D)</option>
         {{/each}}
@@ -49,8 +50,14 @@
     {{#each characters}}
     <details class="difficulty-section" data-character-id="{{ this.id }}" data-group-id="{{ this.groupId }}" open>
       <summary class="flexrow">
+        <label class="flexrow exp-include-label" title="{{ localize 'VERMINE.include_in_phase' }}">
+          <input type="checkbox" data-roll="true" id="include-{{ this.id }}" name="include-{{ this.id }}" checked />
+        </label>
         <span class="label">{{ this.name }}</span>
-        <span class="current-values">{{ localize 'VERMINE.experience_dice' }}: {{ this.dice }}D</span>
+        <span class="current-values">
+          {{#if this.groupName}}[{{ this.groupName }}]{{ else }}[{{ localize 'VERMINE.no_group' }}]{{/if}}
+          {{ localize 'VERMINE.experience_dice' }}: {{ this.dice }}D
+        </span>
       </summary>
       <div class="flexrow difficulty-controls">
         <div class="flexcol">