diff --git a/Mage.Sets/src/mage/cards/b/BarrensteppeSiege.java b/Mage.Sets/src/mage/cards/b/BarrensteppeSiege.java
new file mode 100644
index 00000000000..5bac6c137fd
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/b/BarrensteppeSiege.java
@@ -0,0 +1,64 @@
+package mage.cards.b;
+
+import mage.abilities.common.EntersBattlefieldAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.condition.common.CreatureDiedControlledCondition;
+import mage.abilities.condition.common.ModeChoiceSourceCondition;
+import mage.abilities.decorator.ConditionalTriggeredAbility;
+import mage.abilities.effects.common.ChooseModeEffect;
+import mage.abilities.effects.common.SacrificeOpponentsEffect;
+import mage.abilities.effects.common.counter.AddCountersAllEffect;
+import mage.abilities.triggers.BeginningOfEndStepTriggeredAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.counters.CounterType;
+import mage.filter.StaticFilters;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class BarrensteppeSiege extends CardImpl {
+
+    private static final Condition condition1 = new ModeChoiceSourceCondition("Abzan");
+    private static final String rule1 = "&bull Abzan — At the beginning of your end step, " +
+            "put a +1/+1 counter on each creature you control.";
+    private static final Condition condition2 = new ModeChoiceSourceCondition("Mardu");
+    private static final String rule2 = "&bull Mardu — At the beginning of your end step, " +
+            "if a creature died under your control this turn, each opponent sacrifices a creature of their choice.";
+
+    public BarrensteppeSiege(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{W}{B}");
+
+        // As this enchantment enters, choose Abzan or Mardu.
+        this.addAbility(new EntersBattlefieldAbility(
+                new ChooseModeEffect("Abzan or Mardu?", "Abzan", "Mardu"),
+                null, "As {this} enters, choose Abzan or Mardu.", ""
+        ));
+
+        // * Abzan -- At the beginning of your end step, put a +1/+1 counter on each creature you control.
+        this.addAbility(new ConditionalTriggeredAbility(
+                new BeginningOfEndStepTriggeredAbility(new AddCountersAllEffect(
+                        CounterType.P1P1.createInstance(), StaticFilters.FILTER_CONTROLLED_CREATURE
+                )), condition1, rule1
+        ));
+
+        // * Mardu -- At the beginning of your end step, if a creature died under your control this turn, each opponent sacrifices a creature of their choice.
+        this.addAbility(new ConditionalTriggeredAbility(
+                new BeginningOfEndStepTriggeredAbility(
+                        new SacrificeOpponentsEffect(StaticFilters.FILTER_PERMANENT_CREATURE)
+                ).withInterveningIf(CreatureDiedControlledCondition.instance), condition2, rule2
+        ));
+    }
+
+    private BarrensteppeSiege(final BarrensteppeSiege card) {
+        super(card);
+    }
+
+    @Override
+    public BarrensteppeSiege copy() {
+        return new BarrensteppeSiege(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/TarkirDragonstorm.java b/Mage.Sets/src/mage/sets/TarkirDragonstorm.java
index 72bf414219a..2dabecda639 100644
--- a/Mage.Sets/src/mage/sets/TarkirDragonstorm.java
+++ b/Mage.Sets/src/mage/sets/TarkirDragonstorm.java
@@ -20,6 +20,7 @@ public final class TarkirDragonstorm extends ExpansionSet {
         this.blockName = "Tarkir: Dragonstorm"; // for sorting in GUI
         this.hasBasicLands = false; // temporary
 
+        cards.add(new SetCardInfo("Barrensteppe Siege", 171, Rarity.RARE, mage.cards.b.BarrensteppeSiege.class));
         cards.add(new SetCardInfo("Inevitable Defeat", 194, Rarity.RARE, mage.cards.i.InevitableDefeat.class));
         cards.add(new SetCardInfo("Mox Jasper", 246, Rarity.MYTHIC, mage.cards.m.MoxJasper.class));
         cards.add(new SetCardInfo("Narset, Jeskai Waymaster", 209, Rarity.RARE, mage.cards.n.NarsetJeskaiWaymaster.class));