Move loseAbilities out of constructor

Mage.Sets/src/mage/cards/c/ChromiumTheMutable.java

@@ -46,9 +46,8 @@ public final class ChromiumTheMutable extends CardImpl {
         // Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can't be blocked this turn.
         Ability ability = new SimpleActivatedAbility(
                 new BecomesCreatureSourceEffect(
-                        new ChromiumTheMutableToken(), null, Duration.EndOfTurn,
+                        new ChromiumTheMutableToken(), null, Duration.EndOfTurn
-                        false, true
+                ).andLoseAbilities(true).setText("Until end of turn, {this} becomes "
-                ).setText("Until end of turn, {this} becomes "
                         + "a Human with base power and toughness 1/1, "
                         + "loses all abilities, and gains hexproof"),
                 new DiscardCardCost()

Mage.Sets/src/mage/cards/m/MonumentToPerfection.java

@@ -2,6 +2,7 @@ package mage.cards.m;
 
 import java.util.UUID;
 
+import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.common.ActivateIfConditionActivatedAbility;
 import mage.abilities.common.SimpleActivatedAbility;
@@ -62,9 +63,8 @@ public final class MonumentToPerfection extends CardImpl {
                 ).withType(CardType.ARTIFACT)
                         .withAbility(IndestructibleAbility.getInstance())
                         .withAbility(new ToxicAbility(9)),
-                        null, Duration.Custom, true,
+                        "", Duration.Custom
-                        true
+                ).andLoseAbilities(true), new GenericManaCost(3), MonumentToPerfectionCondition.instance
-                ), new GenericManaCost(3), MonumentToPerfectionCondition.instance
         ).addHint(MonumentToPerfectionValue.getHint()));
     }
 
@@ -100,7 +100,7 @@ enum MonumentToPerfectionValue implements DynamicValue {
                 .getBattlefield()
                 .getActivePermanents(filter, sourceAbility.getControllerId(), game)
                 .stream()
-                .map(permanent -> permanent.getName())
+                .map(MageObject::getName)
                 .filter(s -> s.length() > 0)
                 .distinct()
                 .mapToInt(x -> 1)

Mage/src/main/java/mage/abilities/effects/common/continuous/BecomesCreatureSourceEffect.java

@@ -40,7 +40,7 @@ public class BecomesCreatureSourceEffect extends ContinuousEffectImpl implements
     protected Token token;
     protected String theyAreStillType;
     protected boolean losePreviousTypes;
-    protected boolean loseAbilities;
+    protected boolean loseAbilities = false;
     protected DynamicValue power = null;
     protected DynamicValue toughness = null;
     protected boolean durationRuleAtStart; // put duration rule at the start of the rules text rather than the end
@@ -53,7 +53,7 @@ public class BecomesCreatureSourceEffect extends ContinuousEffectImpl implements
      * @param duration         Duration for the effect
      */
     public BecomesCreatureSourceEffect(Token token, String theyAreStillType, Duration duration) {
-        this(token, theyAreStillType, duration, false, false);
+        this(token, theyAreStillType, duration, false);
     }
 
     /**
@@ -62,7 +62,7 @@ public class BecomesCreatureSourceEffect extends ContinuousEffectImpl implements
      * @param duration Duration for the effect
      */
     public BecomesCreatureSourceEffect(Token token, Duration duration) {
-        this(token, "", duration, true, false);
+        this(token, "", duration, true);
     }
 
     /**
@@ -70,14 +70,12 @@ public class BecomesCreatureSourceEffect extends ContinuousEffectImpl implements
      * @param theyAreStillType  String for rules text generation
      * @param duration          Duration for the effect
      * @param losePreviousTypes if true, permanent loses its previous types
-     * @param loseAbilities     if true, permanent loses its other abilities
      */
-    public BecomesCreatureSourceEffect(Token token, String theyAreStillType, Duration duration, boolean losePreviousTypes, boolean loseAbilities) {
+    public BecomesCreatureSourceEffect(Token token, String theyAreStillType, Duration duration, boolean losePreviousTypes) {
         super(duration, Outcome.BecomeCreature);
         this.token = token;
         this.theyAreStillType = theyAreStillType;
         this.losePreviousTypes = losePreviousTypes;
-        this.loseAbilities = loseAbilities;
         this.durationRuleAtStart = (theyAreStillType != null && theyAreStillType.contains("planeswalker"));
         setText();
         this.hasCDA = checkTokenCDA();
@@ -189,6 +187,15 @@ public class BecomesCreatureSourceEffect extends ContinuousEffectImpl implements
         return this;
     }
 
+    /**
+     * Source loses all other abilities as part of the effect
+     * Note: need to set text manually
+     */
+    public BecomesCreatureSourceEffect andLoseAbilities(boolean loseAbilities) {
+        this.loseAbilities = loseAbilities;
+        return this;
+    }
+
     public BecomesCreatureSourceEffect withDurationRuleAtStart(boolean durationRuleAtStart) {
         this.durationRuleAtStart = durationRuleAtStart;
         setText();