[STX] Implemented Show of Confidence

Mage.Sets/src/mage/cards/s/ShowOfConfidence.java

@@ -0,0 +1,90 @@
+package mage.cards.s;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CastSourceTriggeredAbility;
+import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
+import mage.abilities.effects.common.counter.AddCountersTargetEffect;
+import mage.abilities.keyword.VigilanceAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.counters.CounterType;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.target.common.TargetCreaturePermanent;
+import mage.watchers.common.SpellsCastWatcher;
+
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ShowOfConfidence extends CardImpl {
+
+    public ShowOfConfidence(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{1}{W}");
+
+        // When you cast this spell, copy it for each other instant or sorcery spell you've cast this turn. You may choose new targets for the copies.
+        this.addAbility(new CastSourceTriggeredAbility(new ShowOfConfidenceEffect()), new SpellsCastWatcher());
+
+        // Put a +1/+1 counter on target creature. It gains vigilance until end of turn.
+        this.getSpellAbility().addEffect(new AddCountersTargetEffect(CounterType.P1P1.createInstance()));
+        this.getSpellAbility().addEffect(new GainAbilityTargetEffect(
+                VigilanceAbility.getInstance(), Duration.EndOfTurn
+        ).setText("It gains vigilance until end of turn"));
+        this.getSpellAbility().addTarget(new TargetCreaturePermanent());
+    }
+
+    private ShowOfConfidence(final ShowOfConfidence card) {
+        super(card);
+    }
+
+    @Override
+    public ShowOfConfidence copy() {
+        return new ShowOfConfidence(this);
+    }
+}
+
+class ShowOfConfidenceEffect extends OneShotEffect {
+
+    ShowOfConfidenceEffect() {
+        super(Outcome.Benefit);
+        staticText = "copy it for each other instant or sorcery spell you've cast this turn. " +
+                "You may choose new targets for the copies";
+    }
+
+    private ShowOfConfidenceEffect(final ShowOfConfidenceEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ShowOfConfidenceEffect copy() {
+        return new ShowOfConfidenceEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Spell spell = (Spell) getValue("spellCast");
+        SpellsCastWatcher watcher = game.getState().getWatcher(SpellsCastWatcher.class);
+        if (spell == null || watcher == null) {
+            return false;
+        }
+        int copies = watcher.getSpellsCastThisTurn(source.getControllerId())
+                .stream()
+                .filter(Objects::nonNull)
+                .filter(MageObject::isInstantOrSorcery)
+                .filter(s -> !s.getSourceId().equals(source.getSourceId())
+                        || s.getZoneChangeCounter(game) != source.getSourceObjectZoneChangeCounter())
+                .mapToInt(x -> 1)
+                .sum();
+        if (copies > 0) {
+            spell.createCopyOnStack(game, source, source.getControllerId(), true, copies);
+        }
+        return true;
+    }
+}

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

@@ -232,6 +232,7 @@ public final class StrixhavenSchoolOfMages extends ExpansionSet {
         cards.add(new SetCardInfo("Shadewing Laureate", 229, Rarity.UNCOMMON, mage.cards.s.ShadewingLaureate.class));
         cards.add(new SetCardInfo("Shaile, Dean of Radiance", 158, Rarity.RARE, mage.cards.s.ShaileDeanOfRadiance.class));
         cards.add(new SetCardInfo("Shineshadow Snarl", 272, Rarity.RARE, mage.cards.s.ShineshadowSnarl.class));
+        cards.add(new SetCardInfo("Show of Confidence", 28, Rarity.UNCOMMON, mage.cards.s.ShowOfConfidence.class));
         cards.add(new SetCardInfo("Silverquill Apprentice", 231, Rarity.UNCOMMON, mage.cards.s.SilverquillApprentice.class));
         cards.add(new SetCardInfo("Silverquill Campus", 273, Rarity.COMMON, mage.cards.s.SilverquillCampus.class));
         cards.add(new SetCardInfo("Silverquill Command", 232, Rarity.RARE, mage.cards.s.SilverquillCommand.class));

Mage/src/main/java/mage/watchers/common/SpellsCastWatcher.java

@@ -10,14 +10,9 @@ import mage.game.events.GameEvent.EventType;
 import mage.game.stack.Spell;
 import mage.watchers.Watcher;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
+import java.util.*;
 
 /**
- *
  * @author LevelX2
  */
 public class SpellsCastWatcher extends Watcher {
@@ -73,11 +68,11 @@ public class SpellsCastWatcher extends Watcher {
     }
 
     public List<Spell> getSpellsCastThisTurn(UUID playerId) {
-        return spellsCast.get(playerId);
+        return spellsCast.computeIfAbsent(playerId, x -> new ArrayList<>());
     }
 
     public List<Spell> getSpellsCastFromGraveyardThisTurn(UUID playerId) {
-        return spellsCastFromGraveyard.get(playerId);
+        return spellsCastFromGraveyard.computeIfAbsent(playerId, x -> new ArrayList<>());
     }
 
     public int getNumberOfNonCreatureSpells() {