diff --git a/cockatrice/resources/icon_update.png b/cockatrice/resources/icon_update.png
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diff --git a/cockatrice/src/priceupdater.cpp b/cockatrice/src/priceupdater.cpp
new file mode 100644
index 00000000..e9f1a695
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+++ b/cockatrice/src/priceupdater.cpp
@@ -0,0 +1,81 @@
+/**
+ * @author Marcio Ribeiro <mmr@b1n.org>
+ * @version 1.0
+ */
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+
+#include <QScriptEngine>
+#include <QScriptValueIterator>
+#include "priceupdater.h"
+
+/**
+ * Constructor.
+ *
+ * @param _deck deck.
+ */
+PriceUpdater::PriceUpdater(const DeckList *_deck)
+{
+    nam = new QNetworkAccessManager(this);
+    deck = _deck;
+}
+
+/**
+ * Update the prices of the cards in deckList.
+ */
+void PriceUpdater::updatePrices()
+{
+    QString q = "http://blacklotusproject.com/json/?cards=";
+    QStringList cards = deck->getCardList();
+    for (int i = 0; i < cards.size(); ++i) {
+        q += cards[i] + "|";
+    }
+    QUrl url(q.replace(' ', '+'));
+
+    QNetworkReply *reply = nam->get(QNetworkRequest(url));
+    connect(reply, SIGNAL(finished()), this, SLOT(downloadFinished()));
+}
+
+/**
+ * Called when the download of the json file with the prices is finished.
+ */
+void PriceUpdater::downloadFinished()
+{
+    QMap<QString, DecklistCardNode *> cmap;
+    InnerDecklistNode *listRoot = deck->getRoot();
+    for (int i = 0; i < listRoot->size(); i++) {
+        InnerDecklistNode *currentZone = dynamic_cast<InnerDecklistNode *>(listRoot->at(i));
+        for (int j = 0; j < currentZone->size(); j++) {
+            DecklistCardNode *currentCard = dynamic_cast<DecklistCardNode *>(currentZone->at(j));
+            if (!currentCard)
+                continue;
+            cmap.insert(currentCard->getName().toLower(), currentCard);
+            currentCard->setPrice(0);
+        }
+    }
+
+    QNetworkReply *reply = static_cast<QNetworkReply *>(sender());
+    QByteArray result = reply->readAll();
+    QScriptValue sc;
+    QScriptEngine engine;
+    sc = engine.evaluate("value = " + result);
+
+    if (sc.property("cards").isArray()) {
+        QScriptValueIterator it(sc.property("cards"));
+        while (it.hasNext()) {
+            it.next();
+            QString name = it.value().property("name").toString().toLower();
+            float price = it.value().property("average").toString().toFloat();
+            DecklistCardNode *c = cmap[name];
+            if (!c)
+                continue;
+            if (c->getPrice() == 0 || c->getPrice() > price) {
+                c->setPrice(price);
+            }
+        }
+     }
+
+    reply->deleteLater();
+    deleteLater();
+    emit finishedUpdate();
+}
diff --git a/cockatrice/src/priceupdater.h b/cockatrice/src/priceupdater.h
new file mode 100644
index 00000000..a95252eb
--- /dev/null
+++ b/cockatrice/src/priceupdater.h
@@ -0,0 +1,28 @@
+#ifndef PRICEUPDATER_H
+#define PRICEUPDATER_H
+
+#include <QNetworkReply>
+#include "decklist.h"
+
+class QNetworkAccessManager;
+
+/**
+ * Price Updater.
+ *
+ * @author Marcio Ribeiro <mmr@b1n.org>
+ */
+class PriceUpdater : public QObject
+{
+    Q_OBJECT
+private:
+    const DeckList *deck;
+    QNetworkAccessManager *nam;
+signals:
+    void finishedUpdate();
+private slots:
+    void downloadFinished();
+public:
+    PriceUpdater(const DeckList *deck);
+    void updatePrices();
+};
+#endif