diff --git a/Mage.Sets/src/mage/cards/s/ShieldMare.java b/Mage.Sets/src/mage/cards/s/ShieldMare.java
new file mode 100644
index 00000000000..388a1800953
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/s/ShieldMare.java
@@ -0,0 +1,116 @@
+package mage.cards.s;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.ObjectColor;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.GainLifeEffect;
+import mage.abilities.effects.common.combat.CantBeBlockedByCreaturesSourceEffect;
+import mage.constants.SubType;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.TargetController;
+import mage.constants.Zone;
+import mage.filter.FilterStackObject;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.ColorPredicate;
+import mage.filter.predicate.permanent.ControllerPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.game.stack.StackObject;
+
+/**
+ *
+ * @author TheElk801
+ */
+public final class ShieldMare extends CardImpl {
+
+    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("red creatures");
+
+    static {
+        filter.add(new ColorPredicate(ObjectColor.RED));
+    }
+
+    public ShieldMare(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{W}{W}");
+
+        this.subtype.add(SubType.HORSE);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(3);
+
+        // Shield Mare can't be blocked by red creatures.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.BATTLEFIELD,
+                new CantBeBlockedByCreaturesSourceEffect(
+                        filter, Duration.WhileOnBattlefield
+                )
+        ));
+
+        // When Shield Mare enters the battlefield or becomes the target of a spell or ability and opponent controls, you gain 3 life.
+        this.addAbility(new ShieldMareTriggeredAbility());
+    }
+
+    public ShieldMare(final ShieldMare card) {
+        super(card);
+    }
+
+    @Override
+    public ShieldMare copy() {
+        return new ShieldMare(this);
+    }
+}
+
+class ShieldMareTriggeredAbility extends TriggeredAbilityImpl {
+
+    private static final FilterStackObject filter = new FilterStackObject();
+
+    static {
+        filter.add(new ControllerPredicate(TargetController.OPPONENT));
+    }
+
+    public ShieldMareTriggeredAbility() {
+        super(Zone.ALL, new GainLifeEffect(3));
+    }
+
+    public ShieldMareTriggeredAbility(final ShieldMareTriggeredAbility effect) {
+        super(effect);
+    }
+
+    @Override
+    public ShieldMareTriggeredAbility copy() {
+        return new ShieldMareTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ENTERS_THE_BATTLEFIELD
+                || event.getType() == GameEvent.EventType.TARGETED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.ENTERS_THE_BATTLEFIELD) {
+            return event.getTargetId().equals(getSourceId());
+        }
+        if (event.getType() == GameEvent.EventType.TARGETED) {
+            Permanent permanent = game.getPermanent(getSourceId());
+            if (permanent == null) {
+                return false;
+            }
+            StackObject object = game.getStack().getStackObject(event.getSourceId());
+            return event.getTargetId().equals(getSourceId())
+                    && filter.match(object, getSourceId(), getControllerId(), game);
+        }
+        return false;
+    }
+
+    @Override
+    public String getRule() {
+        return "When {this} enters the battlefield or becomes the target"
+                + " of a spell or ability and opponent controls, you gain 3 life";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/CoreSet2019.java b/Mage.Sets/src/mage/sets/CoreSet2019.java
index 38e8cb07bc4..32b45327774 100644
--- a/Mage.Sets/src/mage/sets/CoreSet2019.java
+++ b/Mage.Sets/src/mage/sets/CoreSet2019.java
@@ -163,6 +163,7 @@ public final class CoreSet2019 extends ExpansionSet {
         cards.add(new SetCardInfo("Scapeshift", 201, Rarity.MYTHIC, mage.cards.s.Scapeshift.class));
         cards.add(new SetCardInfo("Scholar of Stars", 71, Rarity.COMMON, mage.cards.s.ScholarOfStars.class));
         cards.add(new SetCardInfo("Serra's Guardian", 284, Rarity.RARE, mage.cards.s.SerrasGuardian.class));
+        cards.add(new SetCardInfo("Shield Mare", 37, Rarity.UNCOMMON, mage.cards.s.ShieldMare.class));
         cards.add(new SetCardInfo("Shivan Dragon", 300, Rarity.RARE, mage.cards.s.ShivanDragon.class));
         cards.add(new SetCardInfo("Shock", 156, Rarity.COMMON, mage.cards.s.Shock.class));
         cards.add(new SetCardInfo("Silverbeak Griffin", 285, Rarity.COMMON, mage.cards.s.SilverbeakGriffin.class));