diff --git a/cockatrice/CMakeLists.txt b/cockatrice/CMakeLists.txt
index 0b2192399..4ffec752f 100644
--- a/cockatrice/CMakeLists.txt
+++ b/cockatrice/CMakeLists.txt
@@ -107,6 +107,8 @@ set(cockatrice_SOURCES
     src/game/player/player_manager.cpp
     src/game/player/player_target.cpp
     src/game/replay.cpp
+    src/game/tally/tally_manager.cpp
+    src/game/tally/tally_manager.h
     src/game/zones/card_zone_logic.cpp
     src/game/zones/hand_zone_logic.cpp
     src/game/zones/pile_zone_logic.cpp
diff --git a/cockatrice/src/game/tally/tally_manager.cpp b/cockatrice/src/game/tally/tally_manager.cpp
new file mode 100644
index 000000000..0e372241a
--- /dev/null
+++ b/cockatrice/src/game/tally/tally_manager.cpp
@@ -0,0 +1,74 @@
+#include "tally_manager.h"
+
+#include "../board/card_item.h"
+
+const QList<TallyManager::EntryType> TallyManager::ENTRY_TYPES = {COUNT, TOTAL_POWER, TOTAL_MANA_VALUE};
+
+TallyManager::TallyManager(QObject *parent) : QObject(parent)
+{
+    for (auto entryType : ENTRY_TYPES) {
+        resultsMap.insert(entryType, {});
+    }
+    updateResultsMap({});
+}
+
+const QMap<TallyManager::EntryType, TallyResult> &TallyManager::getAllResults() const
+{
+    return resultsMap;
+}
+
+void TallyManager::updateSelection(const QList<CardItem *> &cards)
+{
+    updateResultsMap(cards);
+    emit tallyChanged(resultsMap);
+}
+
+void TallyManager::updateResultsMap(const QList<CardItem *> &cards)
+{
+    for (auto i = resultsMap.begin(); i != resultsMap.end(); ++i) {
+        i.value() = computeTallyResult(i.key(), cards);
+    }
+}
+
+static int totalCount(const QList<CardItem *> &cards)
+{
+    return cards.count();
+}
+
+static int totalPower(const QList<CardItem *> &cards)
+{
+    static const auto powerRegex = QRegularExpression("(\\d+)/(\\d+)");
+    int total = 0;
+    for (auto card : cards) {
+        QString pt = card->getPT();
+        auto match = powerRegex.match(pt);
+        if (match.hasMatch()) {
+            int power = match.captured(1).toInt(); // defaults to 0 if string can't be parsed as int
+            total += power;
+        }
+    }
+    return total;
+}
+
+static int totalManaValue(const QList<CardItem *> &cards)
+{
+    int total = 0;
+    for (auto card : cards) {
+        int mv = card->getCardInfo().getCmc().toInt();
+        total += mv;
+    }
+    return total;
+}
+
+TallyResult TallyManager::computeTallyResult(EntryType type, const QList<CardItem *> &cards)
+{
+    switch (type) {
+        case COUNT:
+            return {tr("Count"), totalCount(cards)};
+        case TOTAL_POWER:
+            return {tr("Total Power"), totalPower(cards)};
+        case TOTAL_MANA_VALUE:
+            return {tr("Total Mana Value"), totalManaValue(cards)};
+    }
+    return {};
+}
diff --git a/cockatrice/src/game/tally/tally_manager.h b/cockatrice/src/game/tally/tally_manager.h
new file mode 100644
index 000000000..da9394957
--- /dev/null
+++ b/cockatrice/src/game/tally/tally_manager.h
@@ -0,0 +1,53 @@
+#ifndef COCKATRICE_TALLY_MANAGER_H
+#define COCKATRICE_TALLY_MANAGER_H
+
+#include <QMap>
+#include <QObject>
+
+class CardItem;
+
+/**
+ * The result of a tally
+ */
+struct TallyResult
+{
+    QString text;  ///< The displayed text.
+    int value = 0; ///< The computed value
+};
+
+/**
+ * Responsible for managing all the tally counts and states
+ */
+class TallyManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    enum EntryType
+    {
+        COUNT,
+        TOTAL_POWER,
+        TOTAL_MANA_VALUE
+    };
+
+    static const QList<EntryType> ENTRY_TYPES;
+
+    explicit TallyManager(QObject *parent = nullptr);
+
+    const QMap<EntryType, TallyResult> &getAllResults() const;
+
+public slots:
+    void updateSelection(const QList<CardItem *> &cards);
+
+signals:
+    void tallyChanged(const QMap<EntryType, TallyResult> &results);
+
+private:
+    QMap<EntryType, TallyResult> resultsMap;
+
+    static TallyResult computeTallyResult(EntryType type, const QList<CardItem *> &cards);
+
+    void updateResultsMap(const QList<CardItem *> &cards);
+};
+
+#endif // COCKATRICE_TALLY_MANAGER_H