* Some minor fixes/code cleanups to IKO cards.

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

@@ -26,7 +26,7 @@ public final class ChargeOfTheForeverBeast extends CardImpl {
 
         // As an additional cost to cast this spell, reveal a creature card from your hand.
         this.getSpellAbility().addCost(new RevealTargetFromHandCost(
-                new TargetCardInHand(StaticFilters.FILTER_CARD_CREATURE_A)
+                new TargetCardInHand(StaticFilters.FILTER_CARD_CREATURE_YOUR_HAND)
         ));
 
         // Charge of the Forever-Beast deals damage to target creature or planeswalker equal to the revealed card's power.
@@ -64,7 +64,7 @@ class ChargeOfTheForeverBeastEffect extends OneShotEffect {
     public boolean apply(Game game, Ability source) {
         Permanent permanent = game.getPermanent(source.getFirstTarget());
         RevealTargetFromHandCost cost = (RevealTargetFromHandCost) source.getCosts().get(0);
-        if (permanent == null && cost == null) {
+        if (permanent == null || cost == null) {
             return false;
         }
         Card card = cost.getRevealedCards().get(0);

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

@@ -92,8 +92,8 @@ class CrystallineGiantEffect extends OneShotEffect {
         List<CounterType> counterTypes = new ArrayList();
         counterTypes.addAll(counterTypeSet);
         counterTypes.removeIf(counters::containsKey);
-        if (counterTypes.size() == 0) {
-            return false;
+        if (counterTypes.isEmpty()) {
+            return true;
         }
         return permanent.addCounters(counterTypes.get(
                 RandomUtil.nextInt(counterTypes.size())

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

@@ -33,7 +33,7 @@ public final class CrystallineResonance extends CardImpl {
         super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{U}");
 
         // Whenever you cycle a card, you may have Crystalline Resonance become a copy of another target permanent until your next turn, except it has this ability.
-        this.addAbility(this.createAbility());
+        this.addAbility(CrystallineResonance.createAbility());
     }
 
     private CrystallineResonance(final CrystallineResonance card) {

Mage.Sets/src/mage/cards/d/DarkBargain.java

@@ -44,7 +44,7 @@ class DarkBargainEffect extends OneShotEffect {
 
     public DarkBargainEffect() {
         super(Outcome.Benefit);
-        this.staticText = "Look at the top three cards of your library. Put two of them into your hand and the rest into your graveyard";
+        this.staticText = "Look at the top three cards of your library. Put two of them into your hand and the other into your graveyard";
     }
 
     public DarkBargainEffect(final DarkBargainEffect effect) {

Mage.Sets/src/mage/cards/l/LavabrinkVenturer.java

@@ -79,7 +79,6 @@ class LavabrinkVenturerEffect extends GainAbilitySourceEffect {
         if (choosenMode == null) {
             return false;
         }
-        Ability ability;
         switch (choosenMode) {
             case "Odd":
                 this.ability = new ProtectionAbility(oddFilter);

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

@@ -40,6 +40,7 @@ public class MythosOfSnapdax extends CardImpl {
         super(card);
     }
 
+    @Override
     public MythosOfSnapdax copy() {
         return new MythosOfSnapdax(this);
     }
@@ -113,10 +114,8 @@ class MythosOfSnapdaxEffect extends OneShotEffect {
             }
         }
 
-        for (Iterator<Permanent> iterator = game.getBattlefield().getActivePermanents(
-                StaticFilters.FILTER_PERMANENT_NON_LAND, source.getControllerId(), game
-        ).iterator(); iterator.hasNext(); ) {
-            Permanent permanent = iterator.next();
+        for (Permanent permanent : game.getBattlefield().getActivePermanents(
+                StaticFilters.FILTER_PERMANENT_NON_LAND, source.getControllerId(), game)) {
             if (permanent == null || toKeep.contains(permanent.getId())) {
                 continue;
             }

Mage.Sets/src/mage/cards/t/TitansNest.java

@@ -89,7 +89,10 @@ class TitansNestEffect extends OneShotEffect {
 class TitansNestManaAbility extends ActivatedManaAbilityImpl {
 
     TitansNestManaAbility() {
-        super(Zone.BATTLEFIELD, (BasicManaEffect) new BasicManaEffect(new TitansNestConditionalMana()).setText("Add {C}. Spend this mana only to cast a colored spell without {X} in its mana cost."), new ExileFromGraveCost(new TargetCardInYourGraveyard()));
+        super(Zone.BATTLEFIELD, (BasicManaEffect) new BasicManaEffect(
+                new TitansNestConditionalMana())
+                .setText("Add {C}. Spend this mana only to cast a colored spell without {X} in its mana cost."), 
+                new ExileFromGraveCost(new TargetCardInYourGraveyard()));
         this.netMana.add(Mana.ColorlessMana(1));
     }
 

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

@@ -36,7 +36,9 @@ public class ExileFromGraveCost extends CostImpl {
                     + CardUtil.numberToText(target.getMaxNumberOfTargets()))
                     + ' ' + target.getTargetName();
         } else {
-            this.text = "Exile " + target.getTargetName();
+            this.text = "Exile " 
+                    + (target.getTargetName().startsWith("card ") ? "a ":"") 
+                    + target.getTargetName();
         }
         if (!this.text.endsWith(" from your graveyard")) {
             this.text = this.text + " from your graveyard";

Mage/src/main/java/mage/filter/StaticFilters.java

@@ -89,6 +89,12 @@ public final class StaticFilters {
         FILTER_CARD_CREATURE_A.setLockedFilter(true);
     }
 
+    public static final FilterCreatureCard FILTER_CARD_CREATURE_YOUR_HAND = new FilterCreatureCard("a creature card from your hand");
+
+    static {
+        FILTER_CARD_CREATURE_YOUR_HAND.setLockedFilter(true);
+    }
+
     public static final FilterCreatureCard FILTER_CARD_CREATURE_YOUR_GRAVEYARD = new FilterCreatureCard("creature card from your graveyard");
 
     static {