if you're having text problems I feel bad for you son, I've got 99 problems and they're all text-related and I've only dealt with a small amount of them

Mage/src/main/java/mage/abilities/common/LimitedTimesPerTurnActivatedAbility.java

@@ -44,7 +44,7 @@ public class LimitedTimesPerTurnActivatedAbility extends ActivatedAbilityImpl {
     public String getRule() {
         StringBuilder sb = new StringBuilder(super.getRule()).append(" Activate ");
         if (condition != null) {
-            sb.append("only ").append(condition.toString()).append(" and ");
+            sb.append("only if ").append(condition.toString()).append(" and ");
         }
         if (getTiming() == TimingRule.SORCERY) {
             sb.append("only as a sorcery and ");

Mage/src/main/java/mage/abilities/common/SpellCastAllTriggeredAbility.java

@@ -10,6 +10,7 @@ import mage.game.Game;
 import mage.game.events.GameEvent;
 import mage.game.stack.Spell;
 import mage.target.targetpointer.FixedTarget;
+import mage.util.CardUtil;
 
 /**
  * @author LevelX2
@@ -78,7 +79,7 @@ public class SpellCastAllTriggeredAbility extends TriggeredAbilityImpl {
         if (rule != null && !rule.isEmpty()) {
             return rule;
         }
-        return "Whenever a player casts " + filter.getMessage() + ", " + super.getRule();
+        return "Whenever a player casts " + CardUtil.addArticle(filter.getMessage()) + ", " + super.getRule();
     }
 
     @Override

Mage/src/main/java/mage/abilities/costs/common/ControlPermanentCost.java

@@ -13,7 +13,7 @@ public class ControlPermanentCost extends CostImpl {
 
     public ControlPermanentCost(FilterControlledPermanent filter) {
         this.filter = filter.copy();
-        this.text = "Activate this ability only if you control " + filter.getMessage();
+        this.text = "Activate only if you control " + filter.getMessage();
     }
 
     public ControlPermanentCost(final ControlPermanentCost cost) {

Mage/src/main/java/mage/abilities/effects/common/search/SearchLibraryGraveyardPutInHandEffect.java

@@ -35,7 +35,7 @@ public class SearchLibraryGraveyardPutInHandEffect extends OneShotEffect {
         this.filter = filter;
         this.forceToSearchBoth = forceToSearchBoth;
         staticText = (youMay ? "you may " : "") + "search your library and" + (forceToSearchBoth ? "" : "/or") + " graveyard for a card named " + filter.getMessage()
-                + ", reveal it, and put it into your hand. " + (forceToSearchBoth ? "Then shuffle" : "If you search your library this way, shuffle");
+                + ", reveal it, then put it into your hand. " + (forceToSearchBoth ? "Then shuffle" : "If you search your library this way, shuffle");
     }
 
     public SearchLibraryGraveyardPutInHandEffect(final SearchLibraryGraveyardPutInHandEffect effect) {

Mage/src/main/java/mage/abilities/effects/common/search/SearchLibraryGraveyardPutOntoBattlefieldEffect.java

@@ -34,7 +34,7 @@ public class SearchLibraryGraveyardPutOntoBattlefieldEffect extends OneShotEffec
         this.filter = filter;
         this.forceToSearchBoth = forceToSearchBoth;
         staticText = (youMay ? "You may " : "") + "search your library and" + (forceToSearchBoth ? "" : "/or") + " graveyard for a " + filter.getMessage()
-                + " and put it onto the battlefield. " + (forceToSearchBoth ? "Then shuffle" : "If you search your library this way, shuffle it");
+                + " and put it onto the battlefield. " + (forceToSearchBoth ? "Then shuffle" : "If you search your library this way, shuffle");
     }
 
     public SearchLibraryGraveyardPutOntoBattlefieldEffect(final SearchLibraryGraveyardPutOntoBattlefieldEffect effect) {

Mage/src/main/java/mage/abilities/keyword/BoastAbility.java

@@ -69,7 +69,7 @@ public class BoastAbility extends ActivatedAbilityImpl {
 
     @Override
     public String getRule() {
-        return "Boast &mdash; " + super.getRule() + " <i>(Activate this ability only if this creature attacked this turn and only once each turn.)</i>";
+        return "Boast &mdash; " + super.getRule() + " <i>(Activate only if this creature attacked this turn and only once each turn.)</i>";
     }
 
     private static final class BoastTwiceAbility extends SimpleStaticAbility {

Mage/src/main/java/mage/abilities/keyword/ChannelAbility.java

@@ -37,7 +37,7 @@ public class ChannelAbility extends ActivatedAbilityImpl {
         StringBuilder sb = new StringBuilder("<i>Channel</i> &mdash; ");
         sb.append(super.getRule());
         if(this.timing == TimingRule.SORCERY) {
-            sb.append(" Activate this ability only any time you could cast a sorcery.");
+            sb.append(" Activate only as a sorcery.");
         }
         return sb.toString();
     }

Mage/src/main/java/mage/abilities/keyword/ForecastAbility.java

@@ -46,6 +46,6 @@ public class ForecastAbility extends ActivatedAbilityImpl {
 
     @Override
     public String getRule() {
-        return "Forecast &mdash; " + super.getRule() + " <i>(Activate this ability only during your upkeep and only once each turn)</i>";
+        return "Forecast &mdash; " + super.getRule() + " <i>(Activate only during your upkeep and only once each turn)</i>";
     }
 }

Mage/src/main/java/mage/abilities/mana/ActivateIfConditionManaAbility.java

@@ -33,7 +33,7 @@ public class ActivateIfConditionManaAbility extends ActivatedManaAbilityImpl {
 
     @Override
     public String getRule() {
-        return super.getRule() + " Activate this ability only if " + condition.toString() + '.';
+        return super.getRule() + " Activate only if " + condition.toString() + '.';
     }
 
     @Override

Mage/src/main/java/mage/abilities/mana/ActivateOncePerTurnManaAbility.java

@@ -40,7 +40,7 @@ public class ActivateOncePerTurnManaAbility extends ActivatedManaAbilityImpl {
 
     @Override
     public String getRule() {
-        return super.getRule() + " Activate this ability only once each turn.";
+        return super.getRule() + " Activate only once each turn.";
     }
 
     @Override

Mage/src/main/java/mage/game/command/emblems/NissaWhoShakesTheWorldEmblem.java

@@ -20,7 +20,7 @@ public final class NissaWhoShakesTheWorldEmblem extends Emblem {
                 Zone.COMMAND,
                 new GainAbilityAllEffect(
                         IndestructibleAbility.getInstance(), Duration.WhileOnBattlefield,
-                        StaticFilters.FILTER_CONTROLLED_PERMANENT_LAND, false
+                        StaticFilters.FILTER_CONTROLLED_PERMANENT_LANDS, false
                 )
         ));
         this.setExpansionSetCodeForImage("WAR");