module/actor.js

@@ -2568,7 +2568,7 @@ export class RdDActor extends Actor {
 
   /* -------------------------------------------- */
   conjurerPossession(possession) {
-    let draconic = this.getBestDraconic()
+    let draconic = this.getBestDraconic();
     RdDPossession.managePossession(this, draconic, possession)
   }
 

module/rdd-possession.js

@@ -139,18 +139,18 @@ export class RdDPossession {
       return;
     }    
     
-    const defender = target.actor
+    const defender = target.actor;
     if ( !possession) {
       possession = this.searchPossessionFromEntite( attacker, defender)
       if ( !possession) {
         possession = await this.createPossession(attacker, defender)
       }
     }
-    possession = duplicate(possession)
+    possession = duplicate(possession);
 
     this.updateEtatPossession(possession)
     let rollData = {
-      competence: competence,
+      competence: competence.data.data.niveau >=0 ? competence : RdDPossession.competenceNonHautRevant(),
       possession: possession,
       possede: defender.name,
       possesseur: attacker.name,
@@ -177,6 +177,19 @@ export class RdDPossession {
     dialog.render(true)
   }
 
+  static competenceNonHautRevant() {
+    return {
+      img: 'systems/foundryvtt-reve-de-dragon/icons/competence_vigilance.webp',
+      name: 'non Haut-rêvant',
+      data: {
+        data: {
+          niveau: 0,
+          defaut_carac: "reve",
+        }
+      }
+    };
+  }
+
   /* -------------------------------------------- */
   static async createPossession( attacker, defender ) {
     let possessionData = {