diff --git a/Mage.Sets/src/mage/cards/m/MandateOfPeace.java b/Mage.Sets/src/mage/cards/m/MandateOfPeace.java
new file mode 100644
index 000000000000..06c0f637341a
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/m/MandateOfPeace.java
@@ -0,0 +1,129 @@
+package mage.cards.m;
+
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Stream;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.CastOnlyDuringPhaseStepSourceAbility;
+import mage.abilities.effects.ContinuousRuleModifyingEffectImpl;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.TurnPhase;
+import mage.game.Game;
+import mage.game.combat.Combat;
+import mage.game.events.GameEvent;
+import mage.game.stack.Spell;
+
+/**
+ *
+ * @author goesta
+ */
+public final class MandateOfPeace extends CardImpl {
+
+    public MandateOfPeace(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{1}{W}");
+        // Cast this spell only during combat.
+        this.addAbility(new CastOnlyDuringPhaseStepSourceAbility(TurnPhase.COMBAT));
+        // Your opponents can't cast spells this turn.
+        this.getSpellAbility().addEffect(new MandateOfPeaceOpponentsCantCastSpellsEffect());
+        // End the combat phase.
+        this.getSpellAbility().addEffect(new MandateOfPeaceEndCombatEffect());
+    }
+
+    private MandateOfPeace(final MandateOfPeace card) {
+        super(card);
+    }
+
+    @Override
+    public MandateOfPeace copy() {
+        return new MandateOfPeace(this);
+    }
+}
+
+class MandateOfPeaceOpponentsCantCastSpellsEffect extends ContinuousRuleModifyingEffectImpl {
+
+    public MandateOfPeaceOpponentsCantCastSpellsEffect() {
+        super(Duration.EndOfTurn, Outcome.Benefit);
+        staticText = "Your opponents can't cast spells this turn.";
+    }
+
+    public MandateOfPeaceOpponentsCantCastSpellsEffect(final MandateOfPeaceOpponentsCantCastSpellsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public MandateOfPeaceOpponentsCantCastSpellsEffect copy() {
+        return new MandateOfPeaceOpponentsCantCastSpellsEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return true;
+    }
+
+    @Override
+    public String getInfoMessage(Ability source, GameEvent event, Game game) {
+        MageObject mageObject = game.getObject(source.getSourceId());
+        if (mageObject != null) {
+            return "You can't cast spells this turn (" + mageObject.getIdName() + ").";
+        }
+        return null;
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.CAST_SPELL;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        return game.getOpponents(source.getControllerId()).contains(event.getPlayerId());
+    }
+
+}
+
+class MandateOfPeaceEndCombatEffect extends OneShotEffect {
+
+    public MandateOfPeaceEndCombatEffect() {
+        super(Outcome.Benefit);
+        this.staticText = "End the combat phase. <i>(Remove all attackers and blockers from combat. Exile all spells and abilities from the stack, including this spell.)</i>";
+    }
+
+    public MandateOfPeaceEndCombatEffect(OneShotEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Combat combat = game.getCombat();
+        List<UUID> attackerIds = combat.getAttackers();
+        List<UUID> blockerIds = combat.getBlockers();
+        Stream.concat(blockerIds.stream(), attackerIds.stream())
+                .map(id -> game.getPermanent(id))
+                .filter(e -> e != null)
+                .forEach(permanent -> permanent.removeFromCombat(game));
+
+        game.getStack().stream()
+                .filter(stackObject -> stackObject instanceof Spell)
+                .forEach(stackObject -> ((Spell) stackObject).moveToExile(null, "", null, game));
+
+        game.getStack().stream()
+                .filter(stackObject -> stackObject instanceof Ability)
+                .forEach(stackObject -> game.getStack().counter(stackObject.getId(), source.getSourceId(), game));
+
+        combat.endCombat(game);
+        return true;
+    }
+
+    @Override
+    public Effect copy() {
+        return new MandateOfPeaceEndCombatEffect(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/Commander2019Edition.java b/Mage.Sets/src/mage/sets/Commander2019Edition.java
index 7fbfd03fb835..3b82f0ab895b 100644
--- a/Mage.Sets/src/mage/sets/Commander2019Edition.java
+++ b/Mage.Sets/src/mage/sets/Commander2019Edition.java
@@ -173,6 +173,7 @@ private Commander2019Edition() {
         cards.add(new SetCardInfo("Magmaquake", 148, Rarity.RARE, mage.cards.m.Magmaquake.class));
         cards.add(new SetCardInfo("Magus of the Wheel", 149, Rarity.RARE, mage.cards.m.MagusOfTheWheel.class));
         cards.add(new SetCardInfo("Malevolent Whispers", 150, Rarity.UNCOMMON, mage.cards.m.MalevolentWhispers.class));
+        cards.add(new SetCardInfo("Mandate of Peace", 4, Rarity.RARE, mage.cards.m.MandateOfPeace.class));
         cards.add(new SetCardInfo("Marisi, Breaker of the Coil", 46, Rarity.MYTHIC, mage.cards.m.MarisiBreakerOfTheCoil.class));
         cards.add(new SetCardInfo("Mass Diminish", 10, Rarity.RARE, mage.cards.m.MassDiminish.class));
         cards.add(new SetCardInfo("Memorial to Folly", 259, Rarity.UNCOMMON, mage.cards.m.MemorialToFolly.class));