diff --git a/Mage.Sets/src/mage/cards/n/Nightcreep.java b/Mage.Sets/src/mage/cards/n/Nightcreep.java
new file mode 100644
index 00000000000..13e51cd7b0a
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/n/Nightcreep.java
@@ -0,0 +1,100 @@
+package mage.cards.n;
+
+import mage.ObjectColor;
+import mage.abilities.Ability;
+import mage.abilities.effects.common.continuous.BecomesBasicLandTargetEffect;
+import mage.abilities.effects.common.continuous.BecomesColorTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.target.targetpointer.FixedTargets;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+/**
+ *
+ * @author noahg
+ */
+public final class Nightcreep extends CardImpl {
+
+    public Nightcreep(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{B}{B}");
+        
+
+        // Until end of turn, all creatures become black and all lands become Swamps.
+        this.getSpellAbility().addEffect(new NightcreepCreatureEffect());
+        this.getSpellAbility().addEffect(new NightcreepLandEffect());
+    }
+
+    public Nightcreep(final Nightcreep card) {
+        super(card);
+    }
+
+    @Override
+    public Nightcreep copy() {
+        return new Nightcreep(this);
+    }
+}
+
+class NightcreepLandEffect extends BecomesBasicLandTargetEffect {
+
+    public NightcreepLandEffect() {
+        super(Duration.EndOfTurn, SubType.SWAMP);
+        this.staticText = "";
+    }
+
+    public NightcreepLandEffect(NightcreepLandEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public void init(Ability source, Game game) {
+        super.init(source, game);
+        List<Permanent> targets = new ArrayList<>(game.getBattlefield().getActivePermanents(StaticFilters.FILTER_LAND, source.getControllerId(), source.getSourceId(), game));
+        this.setTargetPointer(new FixedTargets(targets, game));
+    }
+
+    @Override
+    public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
+        return super.apply(layer, sublayer, source, game);
+    }
+
+    @Override
+    public NightcreepLandEffect copy() {
+        return new NightcreepLandEffect(this);
+    }
+}
+
+class NightcreepCreatureEffect extends BecomesColorTargetEffect {
+
+    public NightcreepCreatureEffect() {
+        super(ObjectColor.BLACK, Duration.EndOfTurn);
+        this.staticText = "Until end of turn, all creatures become black and all lands become Swamps";
+    }
+
+    public NightcreepCreatureEffect(NightcreepCreatureEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public void init(Ability source, Game game) {
+        super.init(source, game);
+        List<Permanent> targets = new ArrayList<>(game.getBattlefield().getActivePermanents(StaticFilters.FILTER_PERMANENT_CREATURE, source.getControllerId(), source.getSourceId(), game));
+        this.setTargetPointer(new FixedTargets(targets, game));
+    }
+
+    @Override
+    public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
+        return super.apply(layer, sublayer, source, game);
+    }
+
+    @Override
+    public NightcreepCreatureEffect copy() {
+        return new NightcreepCreatureEffect(this);
+    }
+}
\ No newline at end of file
diff --git a/Mage.Sets/src/mage/sets/Dissension.java b/Mage.Sets/src/mage/sets/Dissension.java
index fc4c97e5418..3adcbde7f58 100644
--- a/Mage.Sets/src/mage/sets/Dissension.java
+++ b/Mage.Sets/src/mage/sets/Dissension.java
@@ -110,6 +110,7 @@ public final class Dissension extends ExpansionSet {
         cards.add(new SetCardInfo("Momir Vig, Simic Visionary", 118, Rarity.RARE, mage.cards.m.MomirVigSimicVisionary.class));
         cards.add(new SetCardInfo("Muse Vessel", 163, Rarity.RARE, mage.cards.m.MuseVessel.class));
         cards.add(new SetCardInfo("Nettling Curse", 48, Rarity.COMMON, mage.cards.n.NettlingCurse.class));
+        cards.add(new SetCardInfo("Nightcreep", 49, Rarity.UNCOMMON, mage.cards.n.Nightcreep.class));
         cards.add(new SetCardInfo("Nihilistic Glee", 50, Rarity.RARE, mage.cards.n.NihilisticGlee.class));
         cards.add(new SetCardInfo("Novijen, Heart of Progress", 175, Rarity.UNCOMMON, mage.cards.n.NovijenHeartOfProgress.class));
         cards.add(new SetCardInfo("Novijen Sages", 27, Rarity.RARE, mage.cards.n.NovijenSages.class));
diff --git a/Mage/src/main/java/mage/abilities/effects/common/continuous/BecomesColorAllEffect.java b/Mage/src/main/java/mage/abilities/effects/common/continuous/BecomesColorAllEffect.java
new file mode 100644
index 00000000000..f5cefeefbf5
--- /dev/null
+++ b/Mage/src/main/java/mage/abilities/effects/common/continuous/BecomesColorAllEffect.java
@@ -0,0 +1,154 @@
+/*
+ *
+ * Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ *
+ */
+package mage.abilities.effects.common.continuous;
+
+import mage.MageObject;
+import mage.ObjectColor;
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.choices.ChoiceColor;
+import mage.constants.*;
+import mage.filter.FilterPermanent;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author LevelX
+ */
+public class BecomesColorAllEffect extends ContinuousEffectImpl {
+
+    private ObjectColor setColor;
+    protected boolean loseOther;
+    protected FilterPermanent filter;
+
+    /**
+     * Set the color of a spell or permanent
+     *
+     * @param duration
+     */
+    public BecomesColorAllEffect(Duration duration) {
+        this(null, duration);
+    }
+
+    public BecomesColorAllEffect(ObjectColor setColor, Duration duration) {
+        this(setColor, duration, new FilterPermanent("All permanents"), true, null);
+    }
+
+    public BecomesColorAllEffect(ObjectColor setColor, Duration duration, FilterPermanent filter, boolean loseOther, String text) {
+        super(duration, Layer.ColorChangingEffects_5, SubLayer.NA, Outcome.Neutral);
+        this.setColor = setColor;
+        this.filter = filter;
+        this.loseOther = loseOther;
+        staticText = text;
+    }
+
+    public BecomesColorAllEffect(final BecomesColorAllEffect effect) {
+        super(effect);
+        this.setColor = effect.setColor;
+        this.filter = effect.filter;
+        this.loseOther = effect.loseOther;
+    }
+
+    @Override
+    public void init(Ability source, Game game) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            return;
+        }
+        if (setColor == null) {
+            ChoiceColor choice = new ChoiceColor();
+            if (!controller.choose(Outcome.PutManaInPool, choice, game)) {
+                discard();
+                return;
+            }
+            setColor = choice.getColor();
+            if (!game.isSimulation()) {
+                game.informPlayers(controller.getLogName() + " has chosen the color: " + setColor.toString());
+            }
+        }
+
+        super.init(source, game); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            return false;
+        }
+        if (setColor != null) {
+            for (Permanent permanent : game.getBattlefield().getActivePermanents(filter, source.getControllerId(), source.getSourceId(), game)) {
+                if (permanent != null) {
+                    switch (layer) {
+                        case ColorChangingEffects_5:
+                            if (loseOther) {
+                                permanent.getColor(game).setColor(new ObjectColor());
+                            }
+                            permanent.getColor(game).addColor(setColor);
+                            break;
+                    }
+                } else if (duration == Duration.Custom) {
+                    discard();
+                }
+            }
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public BecomesColorAllEffect copy() {
+        return new BecomesColorAllEffect(this);
+    }
+
+    @Override
+    public String getText(Mode mode) {
+        if (staticText != null && !staticText.isEmpty()) {
+            return staticText;
+        }
+        StringBuilder sb = new StringBuilder();
+        sb.append(filter.getMessage());
+        sb.append(" become ");
+        if (setColor == null) {
+            sb.append("the color of your choice");
+        } else {
+            sb.append(setColor.getDescription());
+        }
+        if (!duration.toString().equals("")) {
+            sb.append(' ').append(duration.toString());
+        }
+        return sb.toString();
+    }
+}