module/data/item/domainCard.mjs

@@ -52,11 +52,11 @@ export default class DHDomainCard extends BaseDataItem {
         return game.i18n.localize(allDomainData[this.domain].label);
     }
 
-    get isVaultSupressed() {
+    get vaultSupressed() {
         return this.inVault && !this.vaultActive;
     }
 
-    get isDomainTouchedSuppressed() {
+    get domainTouchedSuppressed() {
         if (!this.parent.system.domainTouched || this.parent.parent?.type !== 'character') return false;
 
         const matchingDomainCards = this.parent.parent.items.filter(
@@ -65,6 +65,17 @@ export default class DHDomainCard extends BaseDataItem {
         return matchingDomainCards < this.parent.system.domainTouched;
     }
 
+    get cannotUse() {
+        if (this.domainTouchedSuppressed) {
+            return ui.notifications.warn(
+                game.i18n.format('DAGGERHEART.UI.Notifications.domainTouchRequirement', {
+                    nr: this.domainTouched,
+                    domain: game.i18n.localize(CONFIG.DH.DOMAIN.allDomains()[this.domain].label)
+                })
+            );
+        }
+    }
+
     /* -------------------------------------------- */
 
     /**@override */

module/documents/activeEffect.mjs

@@ -20,10 +20,10 @@ export default class DhActiveEffect extends foundry.documents.ActiveEffect {
         }
 
         if (this.parent?.type === 'domainCard') {
-            const isVaultSupressed = this.parent.system.isVaultSupressed;
+            const vaultSupressed = this.parent.system.vaultSupressed;
-            const domainTouchedSupressed = this.parent.system.isDomainTouchedSuppressed;
+            const domainTouchedSupressed = this.parent.system.domainTouchedSuppressed;
 
-            return isVaultSupressed || domainTouchedSupressed;
+            return vaultSupressed || domainTouchedSupressed;
         }
 
         return super.isSuppressed;

module/documents/item.mjs

@@ -146,15 +146,7 @@ export default class DHItem extends foundry.documents.Item {
     /* -------------------------------------------- */
 
     async use(event) {
-        /* DomainCard check. Can be expanded or made neater */
+        if (this.system.cannotUse) return;
-        if (this.system.isDomainTouchedSuppressed) {
-            return ui.notifications.warn(
-                game.i18n.format('DAGGERHEART.UI.Notifications.domainTouchRequirement', {
-                    nr: this.domainTouched,
-                    domain: game.i18n.localize(CONFIG.DH.DOMAIN.allDomains()[this.domain].label)
-                })
-            );
-        }
 
         const actions = new Set(this.system.actionsList);
         if (actions?.size) {