Fix a few instances of "it's" vs. "its" grammar error

Mage/src/mage/abilities/costs/AlternativeCostSourceAbility.java

@@ -207,7 +207,7 @@ public class AlternativeCostSourceAbility extends StaticAbility implements Alter
 
     @Override
     public String getCastMessageSuffix(Game game) {
-        return alternateCosts.isEmpty() ? " without paying it's mana costs" : " using alternative casting costs";
+        return alternateCosts.isEmpty() ? " without paying its mana costs" : " using alternative casting costs";
     }
 
     @Override

Mage/src/mage/abilities/costs/common/ReturnToHandSourceCost.java

@@ -42,7 +42,7 @@ import mage.game.permanent.Permanent;
 public class ReturnToHandSourceCost extends CostImpl {
 
     public ReturnToHandSourceCost() {
-        this.text = "return {this} to it's owner's hand";
+        this.text = "return {this} to its owner's hand";
     }
 
     public ReturnToHandSourceCost(ReturnToHandSourceCost cost) {

Mage/src/mage/abilities/costs/common/ReturnToHandTargetPermanentCost.java

@@ -47,9 +47,9 @@ public class ReturnToHandTargetPermanentCost extends CostImpl {
     public ReturnToHandTargetPermanentCost(TargetControlledPermanent target) {
         this.addTarget(target);
         if (target.getMaxNumberOfTargets() > 1 && target.getMaxNumberOfTargets() == target.getNumberOfTargets()) {
-            this.text = new StringBuilder("return ").append(target.getMaxNumberOfTargets()).append(" ").append(target.getTargetName()).append(" you control to it's owner's hand").toString();
+            this.text = new StringBuilder("return ").append(target.getMaxNumberOfTargets()).append(" ").append(target.getTargetName()).append(" you control to its owner's hand").toString();
         } else {
-            this.text = new StringBuilder("return ").append(target.getTargetName()).append(" you control to it's owner's hand").toString();
+            this.text = new StringBuilder("return ").append(target.getTargetName()).append(" you control to its owner's hand").toString();
         }
     }
 

Mage/src/mage/abilities/effects/common/HideawayPlayEffect.java

@@ -82,7 +82,7 @@ public class HideawayPlayEffect extends OneShotEffect {
                     // The land's last ability allows you to play the removed card as part of the resolution of that ability.
                     // Timing restrictions based on the card's type are ignored (for instance, if it's a creature or sorcery).
                     // Other play restrictions are not (such as "Play [this card] only during combat").
-                    if (controller.chooseUse(Outcome.Benefit, "Cast "+ card.getLogName() + " without paying it's mana cost?", source, game)) {
+                    if (controller.chooseUse(Outcome.Benefit, "Cast "+ card.getLogName() + " without paying its mana cost?", source, game)) {
                         card.setFaceDown(false, game);
                         return controller.cast(card.getSpellAbility(), game, true);
                     }

Mage/src/mage/abilities/effects/common/PutOnLibrarySourceEffect.java

@@ -98,7 +98,7 @@ public class PutOnLibrarySourceEffect extends OneShotEffect {
         } else {
             // Put Champion of Stray Souls on top of your library from your graveyard
             sb.append("put {this} on ");
-            sb.append(onTop ? "top" : "the bottom").append(" of it's owner's library");
+            sb.append(onTop ? "top" : "the bottom").append(" of its owner's library");
         }
         return sb.toString();
 

Mage/src/mage/abilities/effects/common/PutOnLibraryTargetEffect.java

@@ -161,7 +161,7 @@ public class PutOnLibraryTargetEffect extends OneShotEffect {
             }
         }
         sb.append("target ").append(mode.getTargets().get(0).getTargetName()).append(" on ");
-        sb.append(onTop ? "top" : "the bottom").append(" of it's owner's library");
+        sb.append(onTop ? "top" : "the bottom").append(" of its owner's library");
 
         return sb.toString();
 

Mage/src/mage/abilities/effects/common/ReturnToBattlefieldUnderOwnerControlSourceEffect.java

@@ -50,7 +50,7 @@ public class ReturnToBattlefieldUnderOwnerControlSourceEffect extends OneShotEff
     public ReturnToBattlefieldUnderOwnerControlSourceEffect(boolean tapped) {
         super(Outcome.Benefit);
         this.tapped = tapped;
-        staticText = new StringBuilder("return that card to the battlefield").append(tapped?" tapped":"").append(" under it's owner's control").toString();
+        staticText = new StringBuilder("return that card to the battlefield").append(tapped?" tapped":"").append(" under its owner's control").toString();
     }
 
     public ReturnToBattlefieldUnderOwnerControlSourceEffect(final ReturnToBattlefieldUnderOwnerControlSourceEffect effect) {

Mage/src/mage/abilities/keyword/MiracleAbility.java

@@ -141,7 +141,7 @@ class MiracleEffect extends OneShotEffect {
 
     public MiracleEffect(ManaCosts<ManaCost> miracleCosts) {
         super(Outcome.Benefit);
-        this.staticText = "cast this card for it's miracle cost";
+        this.staticText = "cast this card for its miracle cost";
         this.miracleCosts = miracleCosts;
     }