diff --git a/Mage.Sets/src/mage/cards/d/DeadlyAllure.java b/Mage.Sets/src/mage/cards/d/DeadlyAllure.java
index 0191d316bc2..bfe8ce12aae 100644
--- a/Mage.Sets/src/mage/cards/d/DeadlyAllure.java
+++ b/Mage.Sets/src/mage/cards/d/DeadlyAllure.java
@@ -3,6 +3,7 @@ package mage.cards.d;
 
 import java.util.UUID;
 import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.Effect;
 import mage.abilities.effects.common.combat.MustBeBlockedByAtLeastOneTargetEffect;
 import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
 import mage.abilities.keyword.DeathtouchAbility;
@@ -26,7 +27,9 @@ public final class DeadlyAllure extends CardImpl {
 
         // Target creature gains deathtouch until end of turn and must be blocked this turn if able.        
         this.getSpellAbility().addEffect(new GainAbilityTargetEffect(DeathtouchAbility.getInstance(), Duration.EndOfTurn));
-        this.getSpellAbility().addEffect(new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn));
+        Effect effect = new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn);
+        effect.setText("and must be blocked this turn if able");
+        this.getSpellAbility().addEffect(effect);
         this.getSpellAbility().addTarget(new TargetCreaturePermanent());
 
         // Flashback {G}
diff --git a/Mage.Sets/src/mage/cards/e/ElementalUprising.java b/Mage.Sets/src/mage/cards/e/ElementalUprising.java
index 319dcf1e2f0..56fb5578331 100644
--- a/Mage.Sets/src/mage/cards/e/ElementalUprising.java
+++ b/Mage.Sets/src/mage/cards/e/ElementalUprising.java
@@ -27,11 +27,11 @@ public final class ElementalUprising extends CardImpl {
         super(ownerId,setInfo,new CardType[]{CardType.INSTANT},"{1}{G}");
 
         // Target land you control becomes a 4/4 Elemental creature with haste until end of turn. It's still a land. It must be blocked this turn if able.
-        getSpellAbility().addEffect(new BecomesCreatureTargetEffect(new ElementalUprisingToken(), false, true, Duration.EndOfTurn));
-        getSpellAbility().addTarget(new TargetPermanent(new FilterControlledLandPermanent()));
+        this.getSpellAbility().addEffect(new BecomesCreatureTargetEffect(new ElementalUprisingToken(), false, true, Duration.EndOfTurn));
+        this.getSpellAbility().addTarget(new TargetPermanent(new FilterControlledLandPermanent()));
         Effect effect = new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn);
         effect.setText("It must be blocked this turn if able");
-        getSpellAbility().addEffect(effect);
+        this.getSpellAbility().addEffect(effect);
     }
 
     public ElementalUprising(final ElementalUprising card) {
diff --git a/Mage.Sets/src/mage/cards/e/EmergentGrowth.java b/Mage.Sets/src/mage/cards/e/EmergentGrowth.java
index 3aa667cbcb7..c7d9c68d461 100644
--- a/Mage.Sets/src/mage/cards/e/EmergentGrowth.java
+++ b/Mage.Sets/src/mage/cards/e/EmergentGrowth.java
@@ -23,7 +23,7 @@ public final class EmergentGrowth extends CardImpl {
         // Target creature gets +5/+5 until end of turn and must be blocked this turn if able.
         this.getSpellAbility().addTarget(new TargetCreaturePermanent());
         this.getSpellAbility().addEffect(new BoostTargetEffect(5, 5, Duration.EndOfTurn));
-        Effect effect = new MustBeBlockedByAtLeastOneTargetEffect();
+        Effect effect = new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn);
         effect.setText("and must be blocked this turn if able");
         this.getSpellAbility().addEffect(effect);
     }
diff --git a/Mage.Sets/src/mage/cards/e/Enlarge.java b/Mage.Sets/src/mage/cards/e/Enlarge.java
index 73349d3edad..0e8a887a21c 100644
--- a/Mage.Sets/src/mage/cards/e/Enlarge.java
+++ b/Mage.Sets/src/mage/cards/e/Enlarge.java
@@ -2,6 +2,7 @@
 package mage.cards.e;
 
 import java.util.UUID;
+import mage.abilities.effects.Effect;
 import mage.abilities.effects.common.combat.MustBeBlockedByAtLeastOneTargetEffect;
 import mage.abilities.effects.common.continuous.BoostTargetEffect;
 import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
@@ -25,7 +26,9 @@ public final class Enlarge extends CardImpl {
         // Target creature gets +7/+7 and gains trample until end of turn. It must be blocked this turn if able.
         this.getSpellAbility().addEffect(new BoostTargetEffect(7,7, Duration.EndOfTurn));
         this.getSpellAbility().addEffect(new GainAbilityTargetEffect(TrampleAbility.getInstance(), Duration.EndOfTurn));
-        this.getSpellAbility().addEffect(new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn));
+        Effect effect = new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn);
+        effect.setText("It must be blocked this turn if able");
+        this.getSpellAbility().addEffect(effect);
         this.getSpellAbility().addTarget(new TargetCreaturePermanent());
     }
 
diff --git a/Mage.Sets/src/mage/cards/g/GaeasProtector.java b/Mage.Sets/src/mage/cards/g/GaeasProtector.java
index 60e9adb41f8..4cd88df8832 100644
--- a/Mage.Sets/src/mage/cards/g/GaeasProtector.java
+++ b/Mage.Sets/src/mage/cards/g/GaeasProtector.java
@@ -5,6 +5,7 @@ import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.effects.common.combat.MustBeBlockedByAtLeastOneSourceEffect;
+import mage.abilities.effects.Effect;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
diff --git a/Mage.Sets/src/mage/cards/i/IrresistiblePrey.java b/Mage.Sets/src/mage/cards/i/IrresistiblePrey.java
index fb8579bc801..7f6f2d13c26 100644
--- a/Mage.Sets/src/mage/cards/i/IrresistiblePrey.java
+++ b/Mage.Sets/src/mage/cards/i/IrresistiblePrey.java
@@ -2,15 +2,12 @@
 package mage.cards.i;
 
 import java.util.UUID;
-import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.effects.common.DrawCardSourceControllerEffect;
 import mage.abilities.effects.common.combat.MustBeBlockedByAtLeastOneTargetEffect;
-import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
 import mage.constants.Duration;
-import mage.constants.Zone;
 import mage.target.common.TargetCreaturePermanent;
 
 /**
@@ -25,10 +22,7 @@ public final class IrresistiblePrey extends CardImpl {
 
         // Target creature must be blocked this turn if able.
         // Draw a card.
-        this.getSpellAbility().addEffect(
-                new GainAbilityTargetEffect(
-                new SimpleStaticAbility(Zone.BATTLEFIELD, new MustBeBlockedByAtLeastOneTargetEffect()),
-                Duration.EndOfTurn));
+        this.getSpellAbility().addEffect(new MustBeBlockedByAtLeastOneTargetEffect(Duration.EndOfTurn));
         this.getSpellAbility().addTarget(new TargetCreaturePermanent());
         this.getSpellAbility().addEffect(new DrawCardSourceControllerEffect(1));
     }
diff --git a/Mage.Tests/src/test/java/org/mage/test/combat/AttackBlockRestrictionsTest.java b/Mage.Tests/src/test/java/org/mage/test/combat/AttackBlockRestrictionsTest.java
index 145e79a9cb1..de7a50b3210 100644
--- a/Mage.Tests/src/test/java/org/mage/test/combat/AttackBlockRestrictionsTest.java
+++ b/Mage.Tests/src/test/java/org/mage/test/combat/AttackBlockRestrictionsTest.java
@@ -542,4 +542,31 @@ public class AttackBlockRestrictionsTest extends CardTestPlayerBase {
         assertLife(playerA, 20);
         assertLife(playerB, 20);
     }
+    
+    @Test
+    public void irresistiblePreyMustBeBlockedTest() {
+        addCard(Zone.BATTLEFIELD, playerA, "Llanowar Elves");
+        addCard(Zone.BATTLEFIELD, playerA, "Alpha Myr");
+        addCard(Zone.BATTLEFIELD, playerA, "Forest");
+        addCard(Zone.HAND, playerA, "Irresistible Prey");
+        
+        addCard(Zone.BATTLEFIELD, playerB, "Bronze Sable");
+        
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Irresistible Prey", "Llanowar Elves"); // must be blocked
+        
+        attack(1, playerA, "Llanowar Elves");
+        attack(1, playerA, "Alpha Myr");
+        
+        // attempt to block the creature that doesn't have "must be blocked"
+        block(1, playerB, "Bronze Sable", "Alpha Myr");
+        
+        setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
+        execute();
+
+        assertGraveyardCount(playerA, "Irresistible Prey", 1);
+        assertGraveyardCount(playerA, "Llanowar Elves", 1);
+        assertGraveyardCount(playerB, "Bronze Sable", 1);
+        assertTapped("Alpha Myr", true);
+        assertLife(playerB, 18);
+    }
 }