diff --git a/Mage.Sets/src/mage/cards/h/HeraldOfTheDreadhorde.java b/Mage.Sets/src/mage/cards/h/HeraldOfTheDreadhorde.java
new file mode 100644
index 0000000000..ef383f86e4
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/h/HeraldOfTheDreadhorde.java
@@ -0,0 +1,38 @@
+package mage.cards.h;
+
+import mage.MageInt;
+import mage.abilities.common.DiesTriggeredAbility;
+import mage.abilities.effects.keyword.AmassEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class HeraldOfTheDreadhorde extends CardImpl {
+
+    public HeraldOfTheDreadhorde(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{B}");
+
+        this.subtype.add(SubType.ZOMBIE);
+        this.subtype.add(SubType.WARRIOR);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(2);
+
+        // When Herald of the Dreadhorde dies, amass 2.
+        this.addAbility(new DiesTriggeredAbility(new AmassEffect(2)));
+    }
+
+    private HeraldOfTheDreadhorde(final HeraldOfTheDreadhorde card) {
+        super(card);
+    }
+
+    @Override
+    public HeraldOfTheDreadhorde copy() {
+        return new HeraldOfTheDreadhorde(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/WarOfTheSpark.java b/Mage.Sets/src/mage/sets/WarOfTheSpark.java
index 3e89e8f300..0db8aa0191 100644
--- a/Mage.Sets/src/mage/sets/WarOfTheSpark.java
+++ b/Mage.Sets/src/mage/sets/WarOfTheSpark.java
@@ -24,6 +24,7 @@ public final class WarOfTheSpark extends ExpansionSet {
         this.maxCardNumberInBooster = 264;
 
         cards.add(new SetCardInfo("Ajani's Pridemate", 4, Rarity.UNCOMMON, mage.cards.a.AjanisPridemate.class));
+        cards.add(new SetCardInfo("Herald of the Dreadhorde", 93, Rarity.COMMON, mage.cards.h.HeraldOfTheDreadhorde.class));
         cards.add(new SetCardInfo("Plains", 250, Rarity.LAND, mage.cards.basiclands.Plains.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Plains", 251, Rarity.LAND, mage.cards.basiclands.Plains.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Plains", 252, Rarity.LAND, mage.cards.basiclands.Plains.class, NON_FULL_USE_VARIOUS));
diff --git a/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java b/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java
new file mode 100644
index 0000000000..c218a960e5
--- /dev/null
+++ b/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java
@@ -0,0 +1,91 @@
+package mage.abilities.effects.keyword;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.dynamicvalue.common.StaticValue;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.counters.CounterType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledPermanent;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.permanent.token.AmassToken;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.TargetPermanent;
+import mage.util.CardUtil;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public class AmassEffect extends OneShotEffect {
+
+    private static final FilterPermanent filter = new FilterControlledPermanent("Army you control");
+
+    static {
+        filter.add(new SubtypePredicate(SubType.ARMY));
+    }
+
+    private final DynamicValue amassNumber;
+    private UUID amassedCreatureId = null;
+
+    public AmassEffect(int amassNumber) {
+        this(new StaticValue(amassNumber));
+        staticText = "Amass " + amassNumber + " <i>(Put " + CardUtil.numberToText(amassNumber) +
+                " +1/+1 counter" + (amassNumber > 1 ? "s" : "") +
+                "on an Army you control. If you don’t control one, " +
+                "create a 0/0 black Zombie Army creature token first.)</i>";
+    }
+
+    public AmassEffect(DynamicValue amassNumber) {
+        super(Outcome.BoostCreature);
+        this.amassNumber = amassNumber;
+        staticText = "Amass " + amassNumber.getMessage() + " <i>(Put X +1/+1 counters" +
+                "on an Army you control. If you don’t control one, " +
+                "create a 0/0 black Zombie Army creature token first.)</i>";
+    }
+
+    private AmassEffect(final AmassEffect effect) {
+        super(effect);
+        this.amassNumber = effect.amassNumber;
+    }
+
+    @Override
+    public AmassEffect copy() {
+        return new AmassEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        int xValue = amassNumber.calculate(game, source, this);
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        if (!game.getBattlefield().contains(filter, 1, game)) {
+            new CreateTokenEffect(new AmassToken()).apply(game, source);
+        }
+        Target target = new TargetPermanent(filter);
+        target.setNotTarget(true);
+        if (!player.choose(outcome, target, source.getSourceId(), game)) {
+            return false;
+        }
+        Permanent permanent = game.getPermanent(target.getFirstTarget());
+        if (permanent == null) {
+            return false;
+        }
+        permanent.addCounters(CounterType.P1P1.createInstance(xValue), source, game);
+        this.amassedCreatureId = permanent.getId();
+        return true;
+    }
+
+    public UUID getAmassedCreatureId() {
+        return amassedCreatureId;
+    }
+}
diff --git a/Mage/src/main/java/mage/constants/SubType.java b/Mage/src/main/java/mage/constants/SubType.java
index 4cefbd0685..2a4ed036c2 100644
--- a/Mage/src/main/java/mage/constants/SubType.java
+++ b/Mage/src/main/java/mage/constants/SubType.java
@@ -53,6 +53,7 @@ public enum SubType {
     ARCHER("Archer", SubTypeSet.CreatureType),
     ARCHON("Archon", SubTypeSet.CreatureType),
     ARTIFICER("Artificer", SubTypeSet.CreatureType),
+    ARMY("Army", SubTypeSet.CreatureType),
     ARTIFICIER("Artificier", SubTypeSet.CreatureType, true),
     ASSASSIN("Assassin", SubTypeSet.CreatureType),
     ASSEMBLY_WORKER("Assembly-Worker", SubTypeSet.CreatureType),
diff --git a/Mage/src/main/java/mage/game/permanent/token/AmassToken.java b/Mage/src/main/java/mage/game/permanent/token/AmassToken.java
new file mode 100644
index 0000000000..82785f7229
--- /dev/null
+++ b/Mage/src/main/java/mage/game/permanent/token/AmassToken.java
@@ -0,0 +1,31 @@
+
+package mage.game.permanent.token;
+
+import mage.MageInt;
+import mage.constants.CardType;
+import mage.constants.SubType;
+
+/**
+ * @author TheElk801
+ */
+public final class AmassToken extends TokenImpl {
+
+    public AmassToken() {
+        super("Zombie Army", "0/0 black Zombie Army creature token");
+        cardType.add(CardType.CREATURE);
+        color.setBlack(true);
+        subtype.add(SubType.ZOMBIE);
+        subtype.add(SubType.ARMY);
+        power = new MageInt(0);
+        toughness = new MageInt(0);
+    }
+
+    private AmassToken(final AmassToken token) {
+        super(token);
+    }
+
+    @Override
+    public AmassToken copy() {
+        return new AmassToken(this);
+    }
+}