diff --git a/cockatrice/src/game_graphics/deckview/deck_view_container.cpp b/cockatrice/src/game_graphics/deckview/deck_view_container.cpp
index c97767ec7..a6e541fca 100644
--- a/cockatrice/src/game_graphics/deckview/deck_view_container.cpp
+++ b/cockatrice/src/game_graphics/deckview/deck_view_container.cpp
@@ -354,6 +354,19 @@ void DeckViewContainer::resolveAndSendPlaymat()
     pp->set_vertical_offset(resolved.params.verticalOffset);
     pp->set_zoom(resolved.params.zoom);
     PendingCommand *playmatPend = parentGame->getGame()->getGameEventHandler()->prepareGameCommand(playmatCmd);
+    const QString sentName = resolved.card.name;
+    connect(playmatPend, &PendingCommand::finished, this, [this, sentName](const Response &r) {
+        // Only RespFunctionNotAllowed signals a card art DENY rule. Older servers that predate
+        // playmats answer RespInvalidCommand and strip the mat from DeckSelect, which must stay silent.
+        if (r.response_code() == Response::RespFunctionNotAllowed) {
+            if (!sentName.isEmpty()) {
+                notifyPlaymatBlacklisted(
+                    sentName, tr("The selected playmat card is blacklisted on this server, so it was not applied."));
+            }
+        } else if (r.response_code() == Response::RespOk && !sentName.isEmpty()) {
+            lastBlacklistedPlaymatNotice.clear();
+        }
+    });
     parentGame->getGame()->getGameEventHandler()->sendGameCommand(playmatPend, playerId);
 }
 
@@ -412,6 +425,15 @@ void DeckViewContainer::deckSelectFinished(const Response &r)
     switchToDeckLoadedView();
 }
 
+void DeckViewContainer::notifyPlaymatBlacklisted(const QString &cardName, const QString &message)
+{
+    if (cardName.isEmpty() || cardName == lastBlacklistedPlaymatNotice) {
+        return;
+    }
+    lastBlacklistedPlaymatNotice = cardName;
+    QMessageBox::critical(this, tr("Error"), message);
+}
+
 void DeckViewContainer::readyStart()
 {
     sendReadyStartCommand(!readyStartButton->getState());
diff --git a/cockatrice/src/game_graphics/deckview/deck_view_container.h b/cockatrice/src/game_graphics/deckview/deck_view_container.h
index 80b82b6e5..c064a5b5a 100644
--- a/cockatrice/src/game_graphics/deckview/deck_view_container.h
+++ b/cockatrice/src/game_graphics/deckview/deck_view_container.h
@@ -60,12 +60,14 @@ private:
     VisualDeckStorageWidget *visualDeckStorageWidget;
     TabGame *parentGame;
     int playerId;
-    int playmatRotationIndex = 0;    ///< Per-match cursor for round-robin playmat mode.
-    DeckList currentDeck;            ///< Cached deck for live settings re-resolution.
-    PlaymatInfo lastResolvedPlaymat; ///< Tracks last sent playmat to avoid repeats in random mode.
+    int playmatRotationIndex = 0;         ///< Per-match cursor for round-robin playmat mode.
+    DeckList currentDeck;                 ///< Cached deck for live settings re-resolution.
+    PlaymatInfo lastResolvedPlaymat;      ///< Tracks last sent playmat to avoid repeats in random mode.
+    QString lastBlacklistedPlaymatNotice; ///< Card name already reported as blacklisted, to avoid repeat popups.
 
     void tryCreateVisualDeckStorageWidget();
     void sendReadyStartCommand(bool ready);
+    void notifyPlaymatBlacklisted(const QString &cardName, const QString &message);
 private slots:
     void switchToDeckSelectView();
     void switchToDeckLoadedView();