diff --git a/Mage.Sets/src/mage/cards/z/ZimoneAllQuestioning.java b/Mage.Sets/src/mage/cards/z/ZimoneAllQuestioning.java
new file mode 100644
index 00000000000..20366e1ee7d
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/z/ZimoneAllQuestioning.java
@@ -0,0 +1,109 @@
+package mage.cards.z;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.BeginningOfEndStepTriggeredAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.counters.CounterType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.permanent.token.PrimoTheIndivisibleToken;
+import mage.game.permanent.token.Token;
+import mage.util.CardUtil;
+import mage.watchers.common.LandfallWatcher;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ZimoneAllQuestioning extends CardImpl {
+
+    public ZimoneAllQuestioning(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{G}{U}");
+
+        this.supertype.add(SuperType.LEGENDARY);
+        this.subtype.add(SubType.HUMAN);
+        this.subtype.add(SubType.WIZARD);
+        this.power = new MageInt(1);
+        this.toughness = new MageInt(1);
+
+        // At the beginning of your end step, if a land entered the battlefield under your control this turn and you control a prime number of lands, create Primo, the Indivisible, a legendary 0/0 green and blue Fractal creature token, then put that many +1/+1 counters on it.
+        this.addAbility(new BeginningOfEndStepTriggeredAbility(
+                new ZimoneAllQuestioningEffect(), TargetController.YOU,
+                ZimoneAllQuestioningCondition.instance, false
+        ), new LandfallWatcher());
+    }
+
+    private ZimoneAllQuestioning(final ZimoneAllQuestioning card) {
+        super(card);
+    }
+
+    @Override
+    public ZimoneAllQuestioning copy() {
+        return new ZimoneAllQuestioning(this);
+    }
+}
+
+enum ZimoneAllQuestioningCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return game
+                .getState()
+                .getWatcher(LandfallWatcher.class)
+                .landPlayed(source.getControllerId())
+                && CardUtil.isPrime(game
+                .getBattlefield()
+                .count(StaticFilters.FILTER_CONTROLLED_PERMANENT_LAND, source.getControllerId(), source, game));
+    }
+
+    @Override
+    public String toString() {
+        return "a land entered the battlefield under your control this turn and you control a prime number of lands";
+    }
+}
+
+class ZimoneAllQuestioningEffect extends OneShotEffect {
+
+    ZimoneAllQuestioningEffect() {
+        super(Outcome.Benefit);
+        staticText = "create Primo, the Indivisible, a legendary 0/0 green and blue " +
+                "Fractal creature token, then put that many +1/+1 counters on it";
+    }
+
+    private ZimoneAllQuestioningEffect(final ZimoneAllQuestioningEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ZimoneAllQuestioningEffect copy() {
+        return new ZimoneAllQuestioningEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Token token = new PrimoTheIndivisibleToken();
+        token.putOntoBattlefield(1, game, source);
+        int count = game.getBattlefield().count(
+                StaticFilters.FILTER_CONTROLLED_PERMANENT_LAND,
+                source.getControllerId(), source, game
+        );
+        if (count < 1) {
+            return true;
+        }
+        for (UUID tokenId : token.getLastAddedTokenIds()) {
+            Permanent permanent = game.getPermanent(tokenId);
+            if (permanent != null) {
+                permanent.addCounters(CounterType.P1P1.createInstance(count), source, game);
+            }
+        }
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
index 9488e5781a0..d3f1b039b24 100644
--- a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
+++ b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
@@ -35,5 +35,6 @@ public final class DuskmournHouseOfHorror extends ExpansionSet {
         cards.add(new SetCardInfo("Swamp", 274, Rarity.LAND, mage.cards.basiclands.Swamp.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("The Wandering Rescuer", 41, Rarity.MYTHIC, mage.cards.t.TheWanderingRescuer.class));
         cards.add(new SetCardInfo("Toby, Beastie Befriender", 35, Rarity.RARE, mage.cards.t.TobyBeastieBefriender.class));
+        cards.add(new SetCardInfo("Zimone, All-Questioning", 241, Rarity.RARE, mage.cards.z.ZimoneAllQuestioning.class));
     }
 }
diff --git a/Mage/src/main/java/mage/game/permanent/token/PrimoTheIndivisibleToken.java b/Mage/src/main/java/mage/game/permanent/token/PrimoTheIndivisibleToken.java
new file mode 100644
index 00000000000..82edcf14cb0
--- /dev/null
+++ b/Mage/src/main/java/mage/game/permanent/token/PrimoTheIndivisibleToken.java
@@ -0,0 +1,31 @@
+package mage.game.permanent.token;
+
+import mage.MageInt;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.SuperType;
+
+/**
+ * @author TheElk801
+ */
+public final class PrimoTheIndivisibleToken extends TokenImpl {
+
+    public PrimoTheIndivisibleToken() {
+        super("Primo, the Indivisible", "Primo, the Indivisible, a legendary 0/0 green and blue Fractal creature token");
+        supertype.add(SuperType.LEGENDARY);
+        cardType.add(CardType.CREATURE);
+        subtype.add(SubType.FRACTAL);
+        color.setGreen(true);
+        color.setBlue(true);
+        power = new MageInt(0);
+        toughness = new MageInt(0);
+    }
+
+    private PrimoTheIndivisibleToken(final PrimoTheIndivisibleToken token) {
+        super(token);
+    }
+
+    public PrimoTheIndivisibleToken copy() {
+        return new PrimoTheIndivisibleToken(this);
+    }
+}
diff --git a/Mage/src/main/java/mage/util/CardUtil.java b/Mage/src/main/java/mage/util/CardUtil.java
index 1d905840986..f5c64098ab1 100644
--- a/Mage/src/main/java/mage/util/CardUtil.java
+++ b/Mage/src/main/java/mage/util/CardUtil.java
@@ -716,6 +716,30 @@ public final class CardUtil {
         }
     }
 
+    /**
+     * Checks if a given integer is prime
+     *
+     * @param number
+     * @return
+     */
+    public static boolean isPrime(int number) {
+        // if it's 1 or less it's not prime
+        if (number < 2) {
+            return false;
+        }
+        // easy to check 2 and 3 first
+        if (number == 2 || number == 3) {
+            return true;
+        }
+        // sieve of eratosthenes, only need to check up to sqrt(x) to find a divisor
+        for (int i = 2; i * i <= number; i++) {
+            if (number % i == 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     public static String createObjectRealtedWindowTitle(Ability source, Game game, String textSuffix) {
         String title;
         if (source != null) {