[TDM] Implement Piercing Exhale

Mage.Sets/src/mage/cards/p/PiercingExhale.java

@@ -0,0 +1,45 @@
+package mage.cards.p;
+
+import mage.abilities.condition.common.BeheldDragonCondition;
+import mage.abilities.decorator.ConditionalOneShotEffect;
+import mage.abilities.effects.common.DamageWithPowerFromOneToAnotherTargetEffect;
+import mage.abilities.effects.keyword.SurveilEffect;
+import mage.abilities.keyword.BeholdDragonAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.target.common.TargetControlledCreaturePermanent;
+import mage.target.common.TargetCreatureOrPlaneswalker;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class PiercingExhale extends CardImpl {
+
+    public PiercingExhale(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{1}{G}");
+
+        // As an additional cost to cast this spell, you may behold a Dragon.
+        this.addAbility(new BeholdDragonAbility());
+
+        // Target creature you control deals damage equal to its power to target creature or planeswalker. If a Dragon was beheld, surveil 2.
+        this.getSpellAbility().addEffect(new DamageWithPowerFromOneToAnotherTargetEffect());
+        this.getSpellAbility().addTarget(new TargetControlledCreaturePermanent());
+        this.getSpellAbility().addTarget(new TargetCreatureOrPlaneswalker());
+        this.getSpellAbility().addEffect(new ConditionalOneShotEffect(
+                new SurveilEffect(2), BeheldDragonCondition.instance,
+                "if a Dragon was beheld, surveil 2"
+        ));
+    }
+
+    private PiercingExhale(final PiercingExhale card) {
+        super(card);
+    }
+
+    @Override
+    public PiercingExhale copy() {
+        return new PiercingExhale(this);
+    }
+}

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

@@ -100,6 +100,7 @@ public final class TarkirDragonstorm extends ExpansionSet {
         cards.add(new SetCardInfo("Neriv, Heart of the Storm", 210, Rarity.MYTHIC, mage.cards.n.NerivHeartOfTheStorm.class));
         cards.add(new SetCardInfo("Nomad Outpost", 263, Rarity.UNCOMMON, mage.cards.n.NomadOutpost.class));
         cards.add(new SetCardInfo("Opulent Palace", 264, Rarity.UNCOMMON, mage.cards.o.OpulentPalace.class));
+        cards.add(new SetCardInfo("Piercing Exhale", 151, Rarity.COMMON, mage.cards.p.PiercingExhale.class));
         cards.add(new SetCardInfo("Plains", 277, Rarity.LAND, mage.cards.basiclands.Plains.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Qarsi Revenant", 86, Rarity.RARE, mage.cards.q.QarsiRevenant.class));
         cards.add(new SetCardInfo("Rakshasa's Bargain", 214, Rarity.UNCOMMON, mage.cards.r.RakshasasBargain.class));

Mage/src/main/java/mage/abilities/condition/common/BeheldDragonCondition.java

@@ -0,0 +1,26 @@
+package mage.abilities.condition.common;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.Condition;
+import mage.abilities.keyword.BeholdDragonAbility;
+import mage.game.Game;
+import mage.util.CardUtil;
+
+/**
+ * Checks if the spell was cast with the alternate behold a Dragon cost
+ *
+ * @author TheElk801
+ */
+public enum BeheldDragonCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return CardUtil.checkSourceCostsTagExists(game, source, BeholdDragonAbility.BEHOLD_DRAGON_ACTIVATION_VALUE_KEY);
+    }
+
+    @Override
+    public String toString() {
+        return "Dragon was beheld";
+    }
+}

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

@@ -0,0 +1,91 @@
+package mage.abilities.keyword;
+
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.StaticAbility;
+import mage.abilities.costs.*;
+import mage.abilities.costs.common.BeholdDragonCost;
+import mage.abilities.costs.common.CollectEvidenceCost;
+import mage.abilities.hint.common.EvidenceHint;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.players.Player;
+
+/**
+ * @author TheElk801
+ */
+public class BeholdDragonAbility extends StaticAbility implements OptionalAdditionalSourceCosts {
+
+    private static final String promptString = "Behold a Dragon";
+    private static final String keywordText = "As an additional cost to cast this spell, you may behold a Dragon";
+    private static final String reminderText = "Choose a Dragon you control or reveal a Dragon card from your hand.";
+    private final String rule;
+
+    public static final String BEHOLD_DRAGON_ACTIVATION_VALUE_KEY = "beholdDragonActivation";
+
+    protected OptionalAdditionalCost additionalCost;
+
+    public static OptionalAdditionalCost makeCost() {
+        OptionalAdditionalCost cost = new OptionalAdditionalCostImpl(keywordText , reminderText, new BeholdDragonCost());
+        cost.setRepeatable(false);
+        return cost;
+    }
+    public BeholdDragonAbility( ) {
+        super(Zone.STACK, null);
+        this.additionalCost = makeCost();
+        this.rule = additionalCost.getName() + ". "  + additionalCost.getReminderText();
+        this.setRuleAtTheTop(true);
+    }
+
+    private BeholdDragonAbility(final BeholdDragonAbility ability) {
+        super(ability);
+        this.rule = ability.rule;
+        this.additionalCost = ability.additionalCost.copy();
+    }
+
+    @Override
+    public BeholdDragonAbility copy() {
+        return new BeholdDragonAbility(this);
+    }
+
+    public void resetCost() {
+        if (additionalCost != null) {
+            additionalCost.reset();
+        }
+    }
+
+    @Override
+    public void addOptionalAdditionalCosts(Ability ability, Game game) {
+        if (!(ability instanceof SpellAbility)) {
+            return;
+        }
+
+        Player player = game.getPlayer(ability.getControllerId());
+        if (player == null) {
+            return;
+        }
+
+        this.resetCost();
+        boolean canPay = additionalCost.canPay(ability, this, ability.getControllerId(), game);
+        if (!canPay || !player.chooseUse(Outcome.Exile, promptString +  '?', ability, game)) {
+            return;
+        }
+
+        additionalCost.activate();
+        for (Cost cost : ((Costs<Cost>) additionalCost)) {
+            ability.getCosts().add(cost.copy());
+        }
+        ability.setCostsTag(BEHOLD_DRAGON_ACTIVATION_VALUE_KEY, null);
+    }
+
+    @Override
+    public String getCastMessageSuffix() {
+        return additionalCost.getCastSuffixMessage(0);
+    }
+
+    @Override
+    public String getRule() {
+        return rule;
+    }
+}