diff --git a/Mage.Sets/src/mage/cards/i/IllithidHarvester.java b/Mage.Sets/src/mage/cards/i/IllithidHarvester.java
new file mode 100644
index 00000000000..9710d2e4f76
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/i/IllithidHarvester.java
@@ -0,0 +1,119 @@
+package mage.cards.i;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.DontUntapInControllersNextUntapStepTargetEffect;
+import mage.abilities.effects.common.TapTargetEffect;
+import mage.abilities.effects.common.continuous.BecomesFaceDownCreatureAllEffect;
+import mage.abilities.effects.common.continuous.BecomesSubtypeAllEffect;
+import mage.cards.AdventureCard;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.Predicate;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.permanent.PermanentIdPredicate;
+import mage.filter.predicate.permanent.TappedPredicate;
+import mage.filter.predicate.permanent.TokenPredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.target.Target;
+import mage.target.common.TargetCreaturePermanent;
+import mage.target.targetadjustment.TargetAdjuster;
+
+import java.util.Arrays;
+import java.util.UUID;
+
+/**
+ * @author PurpleCrowbar
+ */
+public final class IllithidHarvester extends AdventureCard {
+
+    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("tapped nontoken creatures");
+
+    static {
+        filter.add(TappedPredicate.TAPPED);
+        filter.add(TokenPredicate.FALSE);
+    }
+
+    public IllithidHarvester(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, new CardType[]{CardType.SORCERY}, "{4}{U}", "Plant Tadpoles", "{X}{U}{U}");
+        this.subtype.add(SubType.HORROR);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(4);
+
+        // Ceremorphosis — When Illithid Harvester enters the battlefield, turn any number
+        // of target tapped nontoken creatures face down. They're 2/2 Horror creatures.
+        Ability ability = new EntersBattlefieldTriggeredAbility(new IllithidHarvesterEffect());
+        ability.addTarget(new TargetCreaturePermanent(0, Integer.MAX_VALUE, filter, false));
+        this.addAbility(ability.withFlavorWord("Ceremorphosis"));
+
+        // Plant Tadpoles
+        // Tap X target creatures. They don't untap during their controllers' next untap steps.
+        this.getSpellCard().getSpellAbility().addEffect(new TapTargetEffect("tap X target creatures"));
+        this.getSpellCard().getSpellAbility().addEffect(new DontUntapInControllersNextUntapStepTargetEffect()
+                .setText("They don't untap during their controllers' next untap steps"));
+        this.getSpellCard().getSpellAbility().addTarget(new TargetCreaturePermanent());
+        this.getSpellCard().getSpellAbility().setTargetAdjuster(IllithidHarvesterAdjuster.instance);
+
+        this.finalizeAdventure();
+    }
+
+    private IllithidHarvester(final IllithidHarvester card) {
+        super(card);
+    }
+
+    @Override
+    public IllithidHarvester copy() {
+        return new IllithidHarvester(this);
+    }
+}
+
+enum IllithidHarvesterAdjuster implements TargetAdjuster {
+    instance;
+
+    @Override
+    public void adjustTargets(Ability ability, Game game) {
+        ability.getTargets().clear();
+        int xValue = ability.getManaCostsToPay().getX();
+        ability.addTarget(new TargetCreaturePermanent(xValue, xValue));
+    }
+}
+
+class IllithidHarvesterEffect extends OneShotEffect {
+
+    public IllithidHarvesterEffect() {
+        super(Outcome.Detriment);
+        this.staticText = "turn any number of target tapped nontoken creatures face down. They're 2/2 Horror creatures";
+    }
+
+    private IllithidHarvesterEffect(final IllithidHarvesterEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public IllithidHarvesterEffect copy() {
+        return new IllithidHarvesterEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Predicate<Permanent> pred = new PermanentIdPredicate(UUID.randomUUID());
+        for (Target target : source.getTargets()) {
+            for (UUID targetId : target.getTargets()) {
+                pred = Predicates.or(pred, new PermanentIdPredicate(targetId));
+            }
+        }
+        FilterCreaturePermanent filter = new FilterCreaturePermanent();
+        filter.add(pred);
+
+        game.addEffect(new BecomesFaceDownCreatureAllEffect(filter), source);
+        game.addEffect(new BecomesSubtypeAllEffect(Duration.WhileOnBattlefield, Arrays.asList(SubType.HORROR), filter, false), source);
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java b/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java
index dc0c569b159..bb77ce6f46d 100644
--- a/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java
+++ b/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java
@@ -313,6 +313,8 @@ public final class CommanderLegendsBattleForBaldursGate extends ExpansionSet {
         cards.add(new SetCardInfo("Hunted Horror", 758, Rarity.RARE, mage.cards.h.HuntedHorror.class));
         cards.add(new SetCardInfo("Icewind Stalwart", 27, Rarity.COMMON, mage.cards.i.IcewindStalwart.class));
         cards.add(new SetCardInfo("Ignite the Future", 797, Rarity.RARE, mage.cards.i.IgniteTheFuture.class));
+        cards.add(new SetCardInfo("Illithid Harvester", 76, Rarity.RARE, mage.cards.i.IllithidHarvester.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Illithid Harvester", 564, Rarity.RARE, mage.cards.i.IllithidHarvester.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Imoen, Mystic Trickster", 77, Rarity.UNCOMMON, mage.cards.i.ImoenMysticTrickster.class));
         cards.add(new SetCardInfo("In Garruk's Wake", 759, Rarity.RARE, mage.cards.i.InGarruksWake.class));
         cards.add(new SetCardInfo("Ingenious Artillerist", 182, Rarity.COMMON, mage.cards.i.IngeniousArtillerist.class));