- Added Limited Resources and Aether Tide.

Mage.Sets/src/mage/cards/a/AetherTide.java

@@ -0,0 +1,144 @@
+package mage.cards.a;
+
+import java.util.UUID;
+import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
+import mage.abilities.costs.VariableCostImpl;
+import mage.abilities.costs.common.DiscardTargetCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.cards.CardsImpl;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.filter.common.FilterCreatureCard;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.game.Game;
+import mage.game.stack.StackObject;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.target.common.TargetCardInHand;
+
+/**
+ *
+ * @author jeffwadsworth
+ */
+public final class AetherTide extends CardImpl {
+
+    public AetherTide(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{X}{U}");
+
+        // As an additional cost to cast Aether Tide, discard X creature cards.
+        this.getSpellAbility().addCost(new AetherTideCost());
+
+        // Return X target creatures to their owners' hands.
+        this.getSpellAbility().addEffect(new ReturnToHandTargetPermanentEffect());
+
+    }
+
+    public AetherTide(final AetherTide card) {
+        super(card);
+    }
+
+    @Override
+    public AetherTide copy() {
+        return new AetherTide(this);
+    }
+}
+
+class AetherTideCost extends VariableCostImpl {
+
+    public AetherTideCost() {
+        super("discard X creature cards");
+        text = "As an additional cost to cast {this}, discard X creature cards";
+    }
+
+    public AetherTideCost(AetherTideCost cost) {
+        super(cost);
+    }
+
+    @Override
+    public boolean canPay(Ability ability, UUID sourceId, UUID controllerId, Game game) {
+        return (game.getPlayer(controllerId).getHand().count(new FilterCreatureCard(), game) > 0);
+    }
+
+    @Override
+    public int getMaxValue(Ability source, Game game) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null) {
+            return controller.getHand().count(new FilterCreatureCard(), game);
+        }
+        return 0;
+    }
+
+    @Override
+    public int getMinValue(Ability source, Game game) {
+        return 0;
+    }
+
+    @Override
+    public Cost getFixedCostsFromAnnouncedValue(int xValue) {
+        TargetCardInHand target = new TargetCardInHand(xValue, new FilterCreatureCard());
+        return new DiscardTargetCost(target);
+    }
+
+    @Override
+    public int announceXValue(Ability source, Game game) {
+        int xValue = 0;
+        Player controller = game.getPlayer(source.getControllerId());
+        StackObject stackObject = game.getStack().getStackObject(source.getId());
+        if (controller != null
+                && stackObject != null) {
+            xValue = controller.announceXCost(getMinValue(source, game), getMaxValue(source, game),
+                    "Announce the number of creature cards to discard", game, source, this);
+        }
+        return xValue;
+    }
+
+    @Override
+    public AetherTideCost copy() {
+        return new AetherTideCost(this);
+    }
+
+}
+
+class ReturnToHandTargetPermanentEffect extends OneShotEffect {
+
+    public ReturnToHandTargetPermanentEffect() {
+        super(Outcome.ReturnToHand);
+        setText("Return X target creatures to their owners' hands");
+    }
+
+    public ReturnToHandTargetPermanentEffect(final ReturnToHandTargetPermanentEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ReturnToHandTargetPermanentEffect copy() {
+        return new ReturnToHandTargetPermanentEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        int xPaid = source.getCosts().getVariableCosts().get(0).getAmount();
+        if (controller != null
+                && xPaid > 0) {
+            int available = game.getBattlefield().count(new FilterCreaturePermanent(),
+                    source.getSourceId(),
+                    source.getControllerId(), game);
+            if (available > 0) {
+                TargetPermanent target = new TargetPermanent(Math.min(xPaid, available),
+                        xPaid,
+                        new FilterCreaturePermanent("creatures to return to their owner's hands"),
+                        true);
+                if (controller.chooseTarget(outcome.Detriment, target, source, game)) {
+                    controller.moveCards(new CardsImpl(target.getTargets()), Zone.HAND, source, game);
+                }
+                return true;
+            }
+        }
+        return false;
+    }
+}

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

@@ -0,0 +1,124 @@
+package mage.cards.l;
+
+import java.util.UUID;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.common.PermanentsOnTheBattlefieldCondition;
+import mage.abilities.decorator.ConditionalContinuousRuleModifyingEffect;
+import mage.abilities.effects.ContinuousRuleModifyingEffectImpl;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.ComparisonType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.filter.common.FilterControlledLandPermanent;
+import mage.filter.common.FilterLandPermanent;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.players.Player;
+import mage.target.common.TargetLandPermanent;
+
+/**
+ *
+ * @author jeffwadsworth
+ */
+public final class LimitedResources extends CardImpl {
+
+    public LimitedResources(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{W}");
+
+        // When Limited Resources enters the battlefield, each player chooses five lands he or she controls and sacrifices the rest.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new LimitedResourcesEffect(), false));
+
+        // Players can't play lands as long as ten or more lands are on the battlefield.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.BATTLEFIELD,
+                new ConditionalContinuousRuleModifyingEffect(
+                        new CantPlayLandEffect(),
+                        new PermanentsOnTheBattlefieldCondition(
+                                new FilterLandPermanent(),
+                                ComparisonType.MORE_THAN, 9))));
+
+    }
+
+    public LimitedResources(final LimitedResources card) {
+        super(card);
+    }
+
+    @Override
+    public LimitedResources copy() {
+        return new LimitedResources(this);
+    }
+}
+
+class LimitedResourcesEffect extends OneShotEffect {
+
+    public LimitedResourcesEffect() {
+        super(Outcome.Benefit);
+        this.staticText = "each player chooses five lands he or she controls and sacrifices the rest";
+    }
+
+    public LimitedResourcesEffect(final LimitedResourcesEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public LimitedResourcesEffect copy() {
+        return new LimitedResourcesEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        game.getState().getPlayersInRange(source.getControllerId(), game).forEach((playerId) -> {
+            Player player = game.getPlayer(playerId);
+            if (player != null) {
+                int lands = game.getBattlefield().countAll(new FilterControlledLandPermanent(), playerId, game);
+                TargetLandPermanent target = new TargetLandPermanent(Integer.min(5, lands));
+                target.setNotTarget(true);
+                target.setRequired(true);
+                player.chooseTarget(outcome.Benefit, target, source, game);
+                game.getBattlefield().getAllActivePermanents(new FilterControlledLandPermanent(), playerId, game).stream().filter((land) -> (!target.getTargets().contains(land.getId()))).forEachOrdered((land) -> {
+                    land.sacrifice(source.getSourceId(), game);
+                });
+            }
+        });
+        return true;
+    }
+}
+
+class CantPlayLandEffect extends ContinuousRuleModifyingEffectImpl {
+
+    public CantPlayLandEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Detriment);
+        this.staticText = "Players can't play lands as long as ten or more lands are on the battlefield";
+    }
+
+    public CantPlayLandEffect(final CantPlayLandEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public CantPlayLandEffect copy() {
+        return new CantPlayLandEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return true;
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.PLAY_LAND;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        return true;
+    }
+
+}

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

@@ -2,20 +2,20 @@ package mage.cards.m;
 
 import java.util.UUID;
 import mage.MageInt;
+import mage.abilities.Ability;
 import mage.abilities.common.SimpleStaticAbility;
-import mage.abilities.condition.common.ControlsPermanentsComparedToOpponentsCondition;
-import mage.abilities.decorator.ConditionalRestrictionEffect;
 import mage.abilities.effects.Effect;
-import mage.abilities.effects.common.combat.CantAttackAnyPlayerSourceEffect;
-import mage.abilities.effects.common.combat.CantBlockSourceEffect;
+import mage.abilities.effects.RestrictionEffect;
 import mage.constants.SubType;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
-import mage.constants.ComparisonType;
 import mage.constants.Duration;
 import mage.constants.Zone;
-import mage.filter.common.FilterLandPermanent;
+import mage.filter.common.FilterControlledLandPermanent;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
 
 /**
  *
@@ -31,23 +31,15 @@ public final class MonstrousHound extends CardImpl {
         this.toughness = new MageInt(4);
 
         // Monstrous Hound can't attack unless you control more lands than defending player.
-        Effect effect = new ConditionalRestrictionEffect(
-                new CantAttackAnyPlayerSourceEffect(Duration.WhileOnBattlefield),
-                new ControlsPermanentsComparedToOpponentsCondition(
-                        ComparisonType.FEWER_THAN, 
-                        new FilterLandPermanent()));
+        Effect effect = new CantAttackUnlessControllerControlsMoreLandsEffect();
         this.addAbility(new SimpleStaticAbility(
-                Zone.BATTLEFIELD, 
+                Zone.BATTLEFIELD,
                 effect.setText("{this} can't attack unless you control more lands than defending player")));
 
         // Monstrous Hound can't block unless you control more lands than attacking player.
-        Effect effect2 = new ConditionalRestrictionEffect(
-                new CantBlockSourceEffect(Duration.WhileOnBattlefield),
-                new ControlsPermanentsComparedToOpponentsCondition(
-                        ComparisonType.FEWER_THAN, 
-                        new FilterLandPermanent()));
+        Effect effect2 = new CantBlockUnlessControllerControlsMoreLandsEffect();
         this.addAbility(new SimpleStaticAbility(
-                Zone.BATTLEFIELD, 
+                Zone.BATTLEFIELD,
                 effect2.setText("{this} can't block unless you control more lands than attacking player")));
 
     }
@@ -61,3 +53,79 @@ public final class MonstrousHound extends CardImpl {
         return new MonstrousHound(this);
     }
 }
+
+class CantAttackUnlessControllerControlsMoreLandsEffect extends RestrictionEffect {
+
+    CantAttackUnlessControllerControlsMoreLandsEffect() {
+        super(Duration.WhileOnBattlefield);
+    }
+
+    CantAttackUnlessControllerControlsMoreLandsEffect(final CantAttackUnlessControllerControlsMoreLandsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean applies(Permanent permanent, Ability source, Game game) {
+        return permanent.getId().equals(source.getSourceId());
+    }
+
+    @Override
+    public boolean canAttack(Permanent attacker, UUID defenderId, Ability source, Game game) {
+        UUID defendingPlayerId;
+        Player defender = game.getPlayer(defenderId);
+        if (defender == null) {
+            Permanent permanent = game.getPermanent(defenderId);
+            if (permanent != null) {
+                defendingPlayerId = permanent.getControllerId();
+            } else {
+                return false;
+            }
+        } else {
+            defendingPlayerId = defenderId;
+        }
+        if (defendingPlayerId != null) {
+            return game.getBattlefield().countAll(new FilterControlledLandPermanent(),
+                    source.getControllerId(), game) > game.getBattlefield().countAll(new FilterControlledLandPermanent(),
+                    defendingPlayerId, game);
+        } else {
+            return true;
+        }
+    }
+
+    @Override
+    public CantAttackUnlessControllerControlsMoreLandsEffect copy() {
+        return new CantAttackUnlessControllerControlsMoreLandsEffect(this);
+    }
+}
+
+class CantBlockUnlessControllerControlsMoreLandsEffect extends RestrictionEffect {
+
+    CantBlockUnlessControllerControlsMoreLandsEffect() {
+        super(Duration.WhileOnBattlefield);
+    }
+
+    CantBlockUnlessControllerControlsMoreLandsEffect(final CantBlockUnlessControllerControlsMoreLandsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public CantBlockUnlessControllerControlsMoreLandsEffect copy() {
+        return new CantBlockUnlessControllerControlsMoreLandsEffect(this);
+    }
+
+    @Override
+    public boolean canBlock(Permanent attacker, Permanent blocker, Ability source, Game game) {
+        UUID attackingPlayerId = attacker.getControllerId();
+        if (attackingPlayerId != null) {
+            return game.getBattlefield().countAll(new FilterControlledLandPermanent(),
+                    source.getControllerId(), game) > game.getBattlefield().countAll(new FilterControlledLandPermanent(),
+                    attackingPlayerId, game);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean applies(Permanent permanent, Ability source, Game game) {
+        return permanent.getId().equals(source.getSourceId());
+    }
+}

Mage.Sets/src/mage/cards/r/Rebound.java

@@ -8,7 +8,7 @@ import mage.cards.CardSetInfo;
 import mage.constants.CardType;
 import mage.constants.Outcome;
 import mage.filter.FilterSpell;
-import mage.filter.predicate.other.TargetsPlayerPredicate;
+import mage.filter.predicate.other.TargetsOnlyOnePlayerPredicate;
 import mage.game.Game;
 import mage.game.stack.Spell;
 import mage.players.Player;
@@ -27,7 +27,7 @@ public final class Rebound extends CardImpl {
         // Change the target of target spell that targets only a player. The new target must be a player.
         this.getSpellAbility().addEffect(new ReboundEffect());
         FilterSpell filter = new FilterSpell("spell that targets only a player");
-        filter.add(new TargetsPlayerPredicate());
+        filter.add(new TargetsOnlyOnePlayerPredicate());
         this.getSpellAbility().addTarget(new TargetSpell(filter));
 
     }
@@ -68,6 +68,8 @@ class ReboundEffect extends OneShotEffect {
             TargetPlayer targetPlayer = new TargetPlayer();
             if (controller.choose(Outcome.Neutral, targetPlayer, source.getSourceId(), game)) {
                 spell.getSpellAbility().addTarget(targetPlayer);
+                game.informPlayers("The target of the spell was changed to " + targetPlayer.getTargetedName(game));
+                return true;
             }
         }
         return false;

Mage.Sets/src/mage/sets/Exodus.java

@@ -28,6 +28,7 @@ public final class Exodus extends ExpansionSet {
         this.numBoosterUncommon = 3;
         this.numBoosterRare = 1;
         this.ratioBoosterMythic = 0;
+        cards.add(new SetCardInfo("Aether Tide", 27, Rarity.COMMON, mage.cards.a.AetherTide.class));
         cards.add(new SetCardInfo("Allay", 1, Rarity.COMMON, mage.cards.a.Allay.class));
         cards.add(new SetCardInfo("Anarchist", 79, Rarity.COMMON, mage.cards.a.Anarchist.class));
         cards.add(new SetCardInfo("Angelic Blessing", 2, Rarity.COMMON, mage.cards.a.AngelicBlessing.class));
@@ -75,6 +76,7 @@ public final class Exodus extends ExpansionSet {
         cards.add(new SetCardInfo("Keeper of the Mind", 36, Rarity.UNCOMMON, mage.cards.k.KeeperOfTheMind.class));
         cards.add(new SetCardInfo("Killer Whale", 37, Rarity.UNCOMMON, mage.cards.k.KillerWhale.class));
         cards.add(new SetCardInfo("Kor Chant", 9, Rarity.COMMON, mage.cards.k.KorChant.class));
+        cards.add(new SetCardInfo("Limited Resources", 10, Rarity.RARE, mage.cards.l.LimitedResources.class));
         cards.add(new SetCardInfo("Mage il-Vec", 86, Rarity.COMMON, mage.cards.m.MageIlVec.class));
         cards.add(new SetCardInfo("Manabond", 113, Rarity.RARE, mage.cards.m.Manabond.class));
         cards.add(new SetCardInfo("Mana Breach", 38, Rarity.UNCOMMON, mage.cards.m.ManaBreach.class));

Mage/src/main/java/mage/filter/predicate/other/TargetsOnlyOnePlayerPredicate.java

@@ -0,0 +1,48 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package mage.filter.predicate.other;
+
+import java.util.UUID;
+import mage.MageObject;
+import mage.abilities.Mode;
+import mage.filter.predicate.ObjectSourcePlayer;
+import mage.filter.predicate.ObjectSourcePlayerPredicate;
+import mage.game.Game;
+import mage.game.stack.StackObject;
+import mage.players.Player;
+import mage.target.Target;
+
+/**
+ *
+ * @author jeffwadsworth
+ */
+public class TargetsOnlyOnePlayerPredicate implements ObjectSourcePlayerPredicate<ObjectSourcePlayer<MageObject>> {
+
+    public TargetsOnlyOnePlayerPredicate() {
+    }
+
+    @Override
+    public boolean apply(ObjectSourcePlayer<MageObject> input, Game game) {
+        StackObject object = game.getStack().getStackObject(input.getObject().getId());
+        if (object != null) {
+            for (UUID modeId : object.getStackAbility().getModes().getSelectedModes()) {
+                Mode mode = object.getStackAbility().getModes().get(modeId);
+                for (Target target : mode.getTargets()) {
+                    if (target.getTargets().size() == 1) { // only one player targeted
+                        Player player = game.getPlayer(target.getFirstTarget());
+                        return player != null;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return "that targets only one player";
+    }
+}