diff --git a/Mage.Sets/src/mage/cards/m/MonstrousStep.java b/Mage.Sets/src/mage/cards/m/MonstrousStep.java
new file mode 100644
index 00000000000..8adde7371be
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/m/MonstrousStep.java
@@ -0,0 +1,116 @@
+package mage.cards.m;
+
+import java.util.UUID;
+import mage.abilities.Ability;
+import mage.abilities.effects.RequirementEffect;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.common.continuous.BoostTargetEffect;
+import mage.abilities.keyword.CyclingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetCreaturePermanent;
+import mage.watchers.common.BlockedAttackerWatcher;
+
+/**
+ *
+ * @author drowinternet
+ */
+public final class MonstrousStep extends CardImpl {
+
+    private static final FilterCreaturePermanent filterMustBlock = new FilterCreaturePermanent("Target creature that must block");
+    private static final FilterCreaturePermanent filterToBeBlocked = new FilterCreaturePermanent("Creature that will be block");
+
+    public MonstrousStep(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{4}{G}");
+
+
+        // Target creature gets +7/+7 until end of turn.
+        this.getSpellAbility().addEffect(new BoostTargetEffect(7,7, Duration.EndOfTurn)
+                .setText("Target creature gets +7/+7 until end of turn."));
+
+        //Up to one target creature blocks it this turn if able.
+        this.getSpellAbility().addEffect(new MonstrousStepEffect());
+        this.getSpellAbility().addTarget(new TargetCreaturePermanent(filterMustBlock));
+        this.getSpellAbility().addTarget(new TargetCreaturePermanent(filterToBeBlocked));
+        this.getSpellAbility().addWatcher(new BlockedAttackerWatcher());
+
+
+        // Cycling {2}
+        this.addAbility(new CyclingAbility(new ManaCostsImpl("{2}")));
+
+    }
+
+    private MonstrousStep(final MonstrousStep card) {
+        super(card);
+    }
+
+    @Override
+    public MonstrousStep copy() {
+        return new MonstrousStep(this);
+    }
+}
+
+class MonstrousStepEffect extends RequirementEffect {
+
+    public MonstrousStepEffect() {
+        this(Duration.EndOfTurn);
+    }
+
+    public MonstrousStepEffect(Duration duration) {
+        super(duration);
+        staticText = "Up to one target creature blocks it this turn if able.";
+    }
+
+    public MonstrousStepEffect(final MonstrousStepEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean applies(Permanent permanent, Ability source, Game game) {
+        if (permanent.getId().equals(source.getTargets().get(0).getFirstTarget())) {
+            Permanent blocker = game.getPermanent(source.getTargets().get(0).getFirstTarget());
+            if (blocker != null
+                    && blocker.canBlock(source.getTargets().get(1).getFirstTarget(), game)) {
+                Permanent attacker = game.getPermanent(source.getTargets().get(1).getFirstTarget());
+                if (attacker != null) {
+                    BlockedAttackerWatcher blockedAttackerWatcher = game.getState().getWatcher(BlockedAttackerWatcher.class);
+                    if (blockedAttackerWatcher != null
+                            && blockedAttackerWatcher.creatureHasBlockedAttacker(attacker, blocker, game)) {
+                        // has already blocked this turn, so no need to do again
+                        return false;
+                    }
+                    return true;
+                } else {
+                    discard();
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public boolean mustAttack(Game game) {
+        return false;
+    }
+
+    @Override
+    public boolean mustBlock(Game game) {
+        return true;
+    }
+
+    @Override
+    public UUID mustBlockAttacker(Ability source, Game game) {
+        return source.getTargets().get(1).getFirstTarget();
+    }
+
+    @Override
+    public MonstrousStepEffect copy() {
+        return new MonstrousStepEffect(this);
+    }
+
+}
\ No newline at end of file
diff --git a/Mage.Sets/src/mage/sets/IkoriaLairOfBehemoths.java b/Mage.Sets/src/mage/sets/IkoriaLairOfBehemoths.java
index 37ae8a41264..6f35f468f70 100644
--- a/Mage.Sets/src/mage/sets/IkoriaLairOfBehemoths.java
+++ b/Mage.Sets/src/mage/sets/IkoriaLairOfBehemoths.java
@@ -202,6 +202,7 @@ public final class IkoriaLairOfBehemoths extends ExpansionSet {
         cards.add(new SetCardInfo("Migration Path", 164, Rarity.UNCOMMON, mage.cards.m.MigrationPath.class));
         cards.add(new SetCardInfo("Migratory Greathorn", 165, Rarity.COMMON, mage.cards.m.MigratoryGreathorn.class));
         cards.add(new SetCardInfo("Momentum Rumbler", 126, Rarity.UNCOMMON, mage.cards.m.MomentumRumbler.class));
+        cards.add(new SetCardInfo("Monstrous Step", 166, Rarity.UNCOMMON, mage.cards.m.MonstrousStep.class));
         cards.add(new SetCardInfo("Mosscoat Goriak", 167, Rarity.COMMON, mage.cards.m.MosscoatGoriak.class));
         cards.add(new SetCardInfo("Mountain", 269, Rarity.LAND, mage.cards.basiclands.Mountain.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Mountain", 270, Rarity.LAND, mage.cards.basiclands.Mountain.class, NON_FULL_USE_VARIOUS));