diff --git a/Mage.Sets/src/mage/cards/s/SkulkingKiller.java b/Mage.Sets/src/mage/cards/s/SkulkingKiller.java
new file mode 100644
index 00000000000..846b8c88f97
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/s/SkulkingKiller.java
@@ -0,0 +1,78 @@
+package mage.cards.s;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.continuous.BoostTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetOpponentsCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SkulkingKiller extends CardImpl {
+
+    public SkulkingKiller(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{B}");
+
+        this.subtype.add(SubType.VAMPIRE);
+        this.subtype.add(SubType.ASSASSIN);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(2);
+
+        // When Skulking Killer enters the battlefield, target creature an opponent controls gets -2/-2 until end of turn if that opponent controls no other creatures.
+        Ability ability = new EntersBattlefieldTriggeredAbility(new SkulkingKillerEffect());
+        ability.addTarget(new TargetOpponentsCreaturePermanent());
+        this.addAbility(ability);
+    }
+
+    private SkulkingKiller(final SkulkingKiller card) {
+        super(card);
+    }
+
+    @Override
+    public SkulkingKiller copy() {
+        return new SkulkingKiller(this);
+    }
+}
+
+class SkulkingKillerEffect extends OneShotEffect {
+
+    SkulkingKillerEffect() {
+        super(Outcome.Benefit);
+        staticText = "target creature an opponent controls gets -2/-2 " +
+                "until end of turn if that opponent controls no other creatures";
+    }
+
+    private SkulkingKillerEffect(final SkulkingKillerEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public SkulkingKillerEffect copy() {
+        return new SkulkingKillerEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Permanent permanent = game.getPermanent(source.getFirstTarget());
+        if (permanent == null || game.getBattlefield().count(
+                StaticFilters.FILTER_CONTROLLED_CREATURE,
+                source.getSourceId(), permanent.getControllerId(), game
+        ) > 1) {
+            return false;
+        }
+        game.addEffect(new BoostTargetEffect(-2, -2), source);
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/InnistradCrimsonVow.java b/Mage.Sets/src/mage/sets/InnistradCrimsonVow.java
index 9d5c8de12af..769b246e14f 100644
--- a/Mage.Sets/src/mage/sets/InnistradCrimsonVow.java
+++ b/Mage.Sets/src/mage/sets/InnistradCrimsonVow.java
@@ -242,6 +242,7 @@ public final class InnistradCrimsonVow extends ExpansionSet {
         cards.add(new SetCardInfo("Sigarda's Imprisonment", 35, Rarity.COMMON, mage.cards.s.SigardasImprisonment.class));
         cards.add(new SetCardInfo("Sigardian Paladin", 247, Rarity.UNCOMMON, mage.cards.s.SigardianPaladin.class));
         cards.add(new SetCardInfo("Sinner's Judgment", 12, Rarity.MYTHIC, mage.cards.s.SinnersJudgment.class));
+        cards.add(new SetCardInfo("Skulking Killer", 130, Rarity.UNCOMMON, mage.cards.s.SkulkingKiller.class));
         cards.add(new SetCardInfo("Skywarp Skaab", 78, Rarity.COMMON, mage.cards.s.SkywarpSkaab.class));
         cards.add(new SetCardInfo("Snarling Wolf", 219, Rarity.COMMON, mage.cards.s.SnarlingWolf.class));
         cards.add(new SetCardInfo("Sorin the Mirthless", 131, Rarity.MYTHIC, mage.cards.s.SorinTheMirthless.class));