diff --git a/module/actor.js b/module/actor.js
index a97b6bfe..e97805d8 100644
--- a/module/actor.js
+++ b/module/actor.js
@@ -194,7 +194,7 @@ export class RdDActor extends Actor {
   }
   /* -------------------------------------------- */
   isHautRevant() {
-    return Misc.templateData(this).attributs.hautrevant.value != ""
+    return this.isPersonnage() && Misc.templateData(this).attributs.hautrevant.value != ""
   }
   /* -------------------------------------------- */
   getFatigueActuelle() {
@@ -1089,10 +1089,16 @@ export class RdDActor extends Actor {
 
   /* -------------------------------------------- */
   computeIsHautRevant() {
-    const tplData = Misc.templateData(this);
-    tplData.attributs.hautrevant.value = this.listItemsData('tete').find(it => Grammar.toLowerCaseNoAccent(it.name) == 'don de haut-reve')
-      ? "Haut rêvant"
-      : "";
+    if (this.isPersonnage()){
+      Misc.templateData(this).attributs.hautrevant.value = this.hasItemNamed('tete', 'don de haut-reve')
+        ? "Haut rêvant"
+        : "";
+    }
+  }
+
+  hasItemNamed(type, name) {
+    name = Grammar.toLowerCaseNoAccent(name);
+    return this.listItemsData(type).find(it => Grammar.toLowerCaseNoAccent(it.name) == name);
   }
 
   /* -------------------------------------------- */
diff --git a/module/dialog-create-signedraconique-actors.js b/module/dialog-create-signedraconique-actors.js
new file mode 100644
index 00000000..7a475949
--- /dev/null
+++ b/module/dialog-create-signedraconique-actors.js
@@ -0,0 +1,114 @@
+import { ChatUtility } from "./chat-utility.js";
+import { HtmlUtility } from "./html-utility.js";
+import { RdDItemSigneDraconique } from "./item-signedraconique.js";
+import { Misc } from "./misc.js";
+import { TMRType, TMRUtility } from "./tmr-utility.js";
+
+export class DialogCreateSigneDraconiqueForActors extends Dialog {
+
+  static async createSigneForActors() {
+    let dialogData = {
+      signe: {
+        name: 'Un signe draconique',
+        type: "signedraconique",
+        img: 'systems/foundryvtt-reve-de-dragon/icons/tmr/gift.webp',
+        data: {
+          typesTMR: DialogCreateSigneDraconiqueForActors.selectRandomTmrs(),
+          ephemere: true,
+          duree: "1 round",
+          difficulte: -5,
+          valeur: { norm: 10, sign: 10, part: 15 },
+        }
+      },
+      actors: game.actors.filter(actor => actor.isHautRevant()).map(it => duplicate(Misc.data(it)))
+    };
+    dialogData.tmrs = TMRUtility.listSelectedTMR(dialogData.signe.data.typesTMR ?? []);
+    dialogData.actors.forEach(it => it.selected = false);
+
+    const html = await renderTemplate("systems/foundryvtt-reve-de-dragon/templates/dialog-create-signedraconique-actors.html", dialogData);
+    new DialogCreateSigneDraconiqueForActors(dialogData, html)
+      .render(true);
+
+  }
+
+  static selectRandomTmrs() {
+    let tmrs = Object.values(TMRType).map(value => Misc.upperFirst(value.name));
+    const nbTmr = tmrs.length;
+    let remove = Math.floor(Math.random() * (nbTmr - 1));
+    for (let i = nbTmr; i > remove; i--) {
+      tmrs.splice(Math.floor(Math.random() * i), 1);
+    }
+    return tmrs;
+  }
+
+  constructor(dialogData, html, callback) {
+    let options = { classes: ["DialogCreateSigneDraconiqueActorsActors"], width: 500, height: 650, 'z-index': 99999 };
+
+    let conf = {
+      title: "Créer un signe pour les personnages",
+      content: html,
+      default: "Créer le signe",
+      buttons: { "Créer le signe": { label: "Créer le signe", callback: it => { this._onCreerSigne(); } } }
+    };
+    super(conf, options);
+    this.dialogData = dialogData;
+  }
+
+  async _onCreerSigne() {
+    this.dialogData.actors.filter(it => it.selected).map(it => game.actors.get(it._id))
+      .forEach(actor => this._createSigneForActor(actor, this.dialogData.signe));
+  }
+
+  async _createSigneForActor(actor, signe) {
+    actor.createEmbeddedDocuments("Item", [signe]);
+    ChatMessage.create({
+      whisper: ChatUtility.getWhisperRecipientsAndGMs(Misc.data(actor).name),
+      content: await renderTemplate("systems/foundryvtt-reve-de-dragon/templates/chat-signe-draconique-actor.html", {
+        signe: signe,
+        alias: Misc.data(actor).name
+      })
+    });
+  }
+
+
+  /* -------------------------------------------- */
+  activateListeners(html) {
+    super.activateListeners(html);
+    this.setEphemere(this.dialogData.signe.data.ephemere);
+    html.find(".signe-name").change((event) => this.dialogData.signe.name = event.currentTarget.value);
+    html.find(".signe-data-ephemere").change((event) => this.setEphemere(event.currentTarget.checked));
+    html.find(".select-tmr").change((event) => this.onSelectTmr(event));
+    html.find(".select-actor").change((event) => this.onSelectActor(event));
+    html.find(".valeur-xp-sort").change((event) => this.onValeurXpSort(event));
+  }
+  async setEphemere(ephemere){
+    this.dialogData.signe.data.ephemere = ephemere;
+    HtmlUtility._showControlWhen($(".signe-data-duree"), ephemere);
+  }
+
+  async onSelectTmr(event) {
+    event.preventDefault();
+    this.dialogData.signe.data.typesTMR = $(".select-tmr").val();
+  }
+
+  async onSelectActor(event) {
+    event.preventDefault();
+    let selectActor = $(".select-actor");
+    const options = event.currentTarget.options;
+    for (var i = 0; i < options.length; i++) { // looping over the options
+      const actorId = options[i].attributes["data-actor-id"].value;
+      const actor = this.dialogData.actors.find(it => it._id == actorId);
+      if (actor) {
+        actor.selected = options[i].selected;
+      }
+    };
+  }
+
+  onValeurXpSort(event) {
+    const codeReussite = event.currentTarget.attributes['data-typereussite']?.value ?? 0;
+    const xp = Number(event.currentTarget.value);
+    const oldValeur = this.dialogData.signe.data.valeur;
+    this.dialogData.signe.data.valeur = RdDItemSigneDraconique.calculValeursXpSort(codeReussite, xp, oldValeur);
+  }
+
+}
\ No newline at end of file
diff --git a/module/item-signedraconique-sheet.js b/module/item-signedraconique-sheet.js
index b597264d..703064be 100644
--- a/module/item-signedraconique-sheet.js
+++ b/module/item-signedraconique-sheet.js
@@ -1,5 +1,6 @@
+import { RdDItemSigneDraconique } from "./item-signedraconique.js";
 import { Misc } from "./misc.js";
-import { TMRType } from "./tmr-utility.js";
+import { TMRType, TMRUtility } from "./tmr-utility.js";
 
 /**
  * Item sheet pour signes draconiques
@@ -48,16 +49,10 @@ export class RdDSigneDraconiqueItemSheet extends ItemSheet {
       editable: this.isEditable,
       cssClass: this.isEditable ? "editable" : "locked",
     });
-    formData.tmrs = RdDSigneDraconiqueItemSheet.listTMRTypes(formData.data.typesTMR ?? []);
+    formData.tmrs = TMRUtility.listSelectedTMR(formData.data.typesTMR ?? []);
     return formData;
   }
 
-  static listTMRTypes(typesTMR) {
-    return Object.values(TMRType).map(value => Misc.upperFirst(value.name))
-      .sort()
-      .map(name => { return { name: name, selected: typesTMR.includes(name) } });
-  }
-
   /* -------------------------------------------- */
   /** @override */
   activateListeners(html) {
@@ -75,28 +70,12 @@ export class RdDSigneDraconiqueItemSheet extends ItemSheet {
     this.object.update({ 'data.typesTMR': selectedTMR });
   }
 
-  async onValeurXpSort(qualite, valeur) {
-    let tplData = Misc.templateData(this.object);
-    if (valeur != tplData.valeur[qualite])
-    {
-      await this.object.update({ [`data.valeur.${qualite}`]: valeur });
-  
-      tplData = Misc.templateData(this.object);
-      switch (qualite) {
-        case "norm":
-          if (valeur > tplData.valeur.sign) await this.object.update({ 'data.valeur.sign': valeur });
-          if (valeur > tplData.valeur.part) await this.object.update({ 'data.valeur.part': valeur });
-          break;
-        case "sign":
-          if (valeur < tplData.valeur.norm) await this.object.update({ 'data.valeur.norm': valeur });
-          if (valeur > tplData.valeur.part) await this.object.update({ 'data.valeur.part': valeur });
-          break;
-        case "part":
-          if (valeur < tplData.valeur.norm) await this.object.update({ 'data.valeur.norm': valeur });
-          if (valeur < tplData.valeur.sign) await this.object.update({ 'data.valeur.sign': valeur });
-          break;
-      }
-    } 
+  async onValeurXpSort(event) {
+    const codeReussite = event.currentTarget.attributes['data-typereussite']?.value ?? 0;
+    const xp = Number(event.currentTarget.value);
+    const oldValeur = Misc.templateData(this.object).valeur;
+    const newValeur = RdDItemSigneDraconique.calculValeursXpSort(codeReussite, xp, oldValeur);
+    await this.object.update({ 'data.valeur': newValeur });
   }
 
   /* -------------------------------------------- */
diff --git a/module/item-signedraconique.js b/module/item-signedraconique.js
index b2cad95c..e38e7b82 100644
--- a/module/item-signedraconique.js
+++ b/module/item-signedraconique.js
@@ -34,4 +34,27 @@ export class RdDItemSigneDraconique {
     return Misc.data(signe).data.valeur[code] ?? 0;
   }
 
+  static calculValeursXpSort(qualite, valeur, avant) {
+    switch (qualite) {
+      case "norm":
+        return {
+          norm: valeur,
+          sign: Math.max(valeur, avant.sign),
+          part: Math.max(valeur, avant.part)
+        }
+      case "sign":
+        return {
+          norm: Math.min(valeur, avant.norm),
+          sign: valeur,
+          part: Math.max(valeur, avant.part)
+        }
+      case "part":
+        return {
+          norm: Math.min(valeur, avant.norm),
+          sign: Math.min(valeur, avant.sign),
+          part: valeur
+        }
+    }
+  }
+
 }
\ No newline at end of file
diff --git a/module/rdd-commands.js b/module/rdd-commands.js
index f8b44405..16bb4e7d 100644
--- a/module/rdd-commands.js
+++ b/module/rdd-commands.js
@@ -1,5 +1,6 @@
 /* -------------------------------------------- */
 
+import { DialogCreateSigneDraconiqueForActors } from "./dialog-create-signedraconique-actors.js";
 import { RdDItemCompetence } from "./item-competence.js";
 import { Misc } from "./misc.js";
 import { RdDCarac } from "./rdd-carac.js";
@@ -82,6 +83,17 @@ export class RdDCommands {
         descr: `Affiche les heures de chance et de malchance selon l'heure de naissance donnée en argument. Exemples:
           <br><strong>/astro Lyre</strong>`
       });
+
+      rddCommands.registerCommand({
+        path: ["/signe", "+"], func: (content, msg, params) => rddCommands.creerSignesDraconiques(),
+        descr: "Crée un signe draconique et l'ajoute aux haut-rêvants choisis."
+      });
+
+      rddCommands.registerCommand({
+        path: ["/signe", "-"], func: (content, msg, params) => rddCommands.supprimerSignesDraconiquesEphemeres(),
+        descr: "Supprime les signes draconiques éphémères"
+      });
+
       game.system.rdd.commands = rddCommands;
     }
   }
@@ -312,5 +324,20 @@ export class RdDCommands {
     }
   }
 
+  async creerSignesDraconiques() {
+    DialogCreateSigneDraconiqueForActors.createSigneForActors();
+    return true;
+  }
+
+  async supprimerSignesDraconiquesEphemeres() {
+    game.actors.forEach(actor => {
+      const ephemeres = actor.filterItems(item => Misc.data(item).type = 'signedraconique' && Misc.data(item).data.ephemere)
+        .map(item => item.id);
+      if (ephemeres.length > 0) {
+        actor.deleteEmbeddedDocuments("Item", ephemeres);
+      }
+    });
+    return true;
+  }
 }
 
diff --git a/module/rdd-utility.js b/module/rdd-utility.js
index a39c7135..ba46ca35 100644
--- a/module/rdd-utility.js
+++ b/module/rdd-utility.js
@@ -205,7 +205,8 @@ export class RdDUtility {
       'systems/foundryvtt-reve-de-dragon/templates/chat-actor-competence-xp.html',
       'systems/foundryvtt-reve-de-dragon/templates/chat-actor-carac-xp.html',
       'systems/foundryvtt-reve-de-dragon/templates/chat-potionenchantee-chateaudormant.html',
-      'systems/foundryvtt-reve-de-dragon/templates/chat-fabriquer-potion-base.html'
+      'systems/foundryvtt-reve-de-dragon/templates/chat-fabriquer-potion-base.html',
+      'systems/foundryvtt-reve-de-dragon/templates/chat-signe-draconique-actor.html'
     ];
 
     Handlebars.registerHelper('upperFirst', str => Misc.upperFirst(str ?? 'Null'));
diff --git a/module/tmr-utility.js b/module/tmr-utility.js
index 566d45a7..6d418776 100644
--- a/module/tmr-utility.js
+++ b/module/tmr-utility.js
@@ -346,6 +346,12 @@ export class TMRUtility {
     return Grammar.articleDetermine(tmr.type) + ' ' + tmr.label;
   }
 
+  static listSelectedTMR(typesTMR) {
+    return Object.values(TMRType).map(value => Misc.upperFirst(value.name))
+      .sort()
+      .map(name => { return { name: name, selected: typesTMR.includes(name) } });
+  }
+
   static isCaseHumide(tmr) {
     return tmr.type == 'fleuve' || tmr.type == 'lac' || tmr.type == 'marais';
   }
diff --git a/templates/chat-signe-draconique-actor.html b/templates/chat-signe-draconique-actor.html
new file mode 100644
index 00000000..f05b43fb
--- /dev/null
+++ b/templates/chat-signe-draconique-actor.html
@@ -0,0 +1,7 @@
+<h4><img class="chat-icon" src="{{signe.img}}" alt="{{signe.name}}" />
+  {{alias}} perçoit {{signe.name}}
+</h4>
+<p>Pour le lire ce signe draconique, rendez-vous dans les
+  Terres Médianes du Rêve et trouvez une case de résonnance.
+  {{#if signe.data.ephemere}}C'est un signe éphémère, qui ne restera présent que pour {{signe.data.duree}}{{/if}}
+</p>
diff --git a/templates/dialog-create-signedraconique-actors.html b/templates/dialog-create-signedraconique-actors.html
new file mode 100644
index 00000000..9d4a6945
--- /dev/null
+++ b/templates/dialog-create-signedraconique-actors.html
@@ -0,0 +1,57 @@
+<form class="skill-roll-dialog">
+  <div>
+    <h4>Un signe draconique éphémère se manifeste:
+      <br><input class="signe-name" type="text" name="signe.name" value="{{signe.name}}" data-dtype="String" />
+    </h4>
+  </div>
+  <div class="form-group">
+    <label for="actors">Personnages concernés</label>
+    <select class="select-actor attribute-value" name="actors" id="actors" size="7" multiple>
+      {{#each actors as |actor key|}}
+      <option value="{{actor.name}}" data-actor-id="{{actor._id}}" {{#if actor.selected}}selected{{/if}}>
+        <img class="chat-icon" src="{{actor.img}}" title="{{actor.name}}" alt="{{actor.name}}" />
+        {{actor.name}}
+      </option>
+      {{/each}}
+    </select>
+  </div>
+
+
+  <div class="form-group">
+    <label for="signe.data.difficulte">Difficulte</label>
+    <input class="attribute-value" type="number" name="signe.data.difficulte" value="{{signe.data.difficulte}}" data-dtype="Number" />
+  </div>
+
+  <div class="form-group">
+    <label for="signe.data.valeur.norm">Expérience en sorts</label>
+    <div class="flexrow">
+      <input class="valeur-xp-sort" type="number" name="signe.data.valeur.norm" data-typereussite="norm"
+        value="{{signe.data.valeur.norm}}" min="1" max="100" data-dtype="Number" />
+      <span>Sign.</span>
+      <input class="valeur-xp-sort" type="number" name="signe.data.valeur.sign" data-typereussite="sign"
+        value="{{signe.data.valeur.sign}}" min="1" max="100" data-dtype="Number" />
+      <span>Part.</span>
+      <input class="valeur-xp-sort" type="number" name="signe.data.valeur.part" data-typereussite="part"
+        value="{{signe.data.valeur.part}}" min="1" max="100" data-dtype="Number" />
+    </div>
+  </div>
+
+  <div class="form-group">
+    <span>
+      <label for="signe.data.ephemere">Ephémère</label>
+      <input class="attribute-value signe-data-ephemere" type="checkbox" name="signe.data.ephemere" {{#if signe.data.ephemere}}checked{{/if}} />
+    </span>
+    <span>
+      <input class="signe-data-duree attribute-value" type="text" name="signe.data.duree" value="{{signe.data.duree}}" data-dtype="String" />
+    </span>
+  </div>
+  <div class="form-group">
+    <label for="tmrs">Terres médianes</label>
+    <select class="select-tmr attribute-value" name="tmrs" id="tmrs" size="{{tmrs.length}}" multiple>
+      {{#each tmrs as |tmr key|}}
+      <option value="{{tmr.name}}" {{#if tmr.selected}}selected{{/if}}>{{tmr.name}}</option>
+      {{/each}}
+    </select>
+  </div>
+
+</form>
\ No newline at end of file
diff --git a/templates/item-livre-sheet.html b/templates/item-livre-sheet.html
index 8230103c..23f6345c 100644
--- a/templates/item-livre-sheet.html
+++ b/templates/item-livre-sheet.html
@@ -29,15 +29,15 @@
       </div>
       <div class="form-group">
         <label for="xp">Difficulté</label>
-        <input class="attribute-value" type="text" name="data.difficulte" value="{{data.difficulte}}" data-dtype="Number"/>
+        <input class="attribute-value" type="number" name="data.difficulte" value="{{data.difficulte}}" data-dtype="Number"/>
       </div>
       <div class="form-group">
         <label for="xp">Points de tâches</label>
-        <input class="attribute-value" type="text" name="data.points_de_tache" value="{{data.points_de_tache}}" data-dtype="Number"/>
+        <input class="attribute-value" type="number" name="data.points_de_tache" value="{{data.points_de_tache}}" data-dtype="Number"/>
       </div>
       <div class="form-group">
         <label for="xp">Expérience</label>
-        <input class="attribute-value" type="text" name="data.xp" value="{{data.xp}}" data-dtype="String"/>
+        <input class="attribute-value" type="number" name="data.xp" value="{{data.xp}}" data-dtype="Number"/>
       </div>
       <div class="form-group">
         <label for="xp">Niveau minimum</label>
@@ -49,15 +49,15 @@
       </div>
       <div class="form-group">
         <label for="xp">Encombrement </label>
-        <input class="attribute-value" type="text" name="data.encombrement" value="{{data.encombrement}}" data-dtype="Number"/>
+        <input class="attribute-value" type="number" name="data.encombrement" value="{{data.encombrement}}" data-dtype="Number"/>
       </div>
       <div class="form-group">
         <label>Quantité </label>
-        <input class="attribute-value" type="text" name="data.quantite" value="{{data.quantite}}" data-dtype="Number" />
+        <input class="attribute-value" type="number" name="data.quantite" value="{{data.quantite}}" data-dtype="Number" />
       </div>
       <div class="form-group item-cout">
         <label for="xp">Prix (sols) </label>
-        <input class="attribute-value" type="text" name="data.cout" value="{{data.cout}}" data-dtype="Number"/>
+        <input class="attribute-value" type="number" name="data.cout" value="{{data.cout}}" data-dtype="Number"/>
       </div>
       <div class="flexcol">
         <span><label>Description : </label></span>
diff --git a/templates/item-signedraconique-sheet.html b/templates/item-signedraconique-sheet.html
index dbcf1050..e7bb228a 100644
--- a/templates/item-signedraconique-sheet.html
+++ b/templates/item-signedraconique-sheet.html
@@ -8,6 +8,24 @@
 
   {{!-- Sheet Body --}}
   <section class="sheet-body">
+    <div class="form-group">
+      <label for="data.difficulte">Difficulte</label>
+      <input class="attribute-value" type="number" name="data.difficulte" value="{{data.difficulte}}"
+        data-dtype="Number" />
+    </div>
+    <div class="form-group">
+      <label for="data.valeur.norm">Expérience en sorts</label>
+      <div class="flexrow">
+        <input class="valeur-xp-sort" type="number" name="data.valeur.norm" data-typereussite="norm"
+          value="{{data.valeur.norm}}" min="1" max="100" data-dtype="Number" />
+        <span>Sign.</span>
+        <input class="valeur-xp-sort" type="number" name="data.valeur.sign" data-typereussite="sign"
+          value="{{data.valeur.sign}}" min="1" max="100" data-dtype="Number" />
+        <span>Part.</span>
+        <input class="valeur-xp-sort" type="number" name="data.valeur.part" data-typereussite="part"
+          value="{{data.valeur.part}}" min="1" max="100" data-dtype="Number" />
+      </div>
+    </div>
     <div class="form-group">
       <label for="data.ephemere">Ephémère</label>
       <input class="attribute-value" type="checkbox" name="data.ephemere" {{#if data.ephemere}}checked{{/if}} />
@@ -18,24 +36,6 @@
       <input class="attribute-value" type="text" name="data.duree" value="{{data.duree}}" data-dtype="String" />
     </div>
     {{/if}}
-    <div class="form-group">
-      <label for="data.difficulte">Difficulte</label>
-      <input class="attribute-value" type="text" name="data.difficulte" value="{{data.difficulte}}"
-        data-dtype="Number" />
-    </div>
-    <div class="form-group">
-      <label for="data.valeur.norm">Expérience en sorts</label>
-      <div class="flexrow">
-        <input class="valeur-xp-sort" type="number" name="data.valeur.norm" data-typereussite="norm" value="{{data.valeur.norm}}"
-          min="1" max="100" data-dtype="Number" />
-        <span>Sign.</span>
-        <input class="valeur-xp-sort" type="number" name="data.valeur.sign" data-typereussite="sign" value="{{data.valeur.sign}}"
-          min="1" max="100" data-dtype="Number" />
-        <span>Part.</span>
-        <input class="valeur-xp-sort" type="number" name="data.valeur.part" data-typereussite="part" value="{{data.valeur.part}}"
-          min="1" max="100" data-dtype="Number" />
-      </div>
-    </div>
     <div class="form-group">
       <label for="tmrs">Terres médianes</label>
       <select class="select-tmr attribute-value" name="tmrs" id="tmrs" size={{tmrs.length}} multiple />