Initiative abilities - added card hint with initiative info to all related cards (closes #11424);

tests: added verify test for miss initiative card hint;
gui: fixed wrong max amount of card hint windows;

Mage.Client/src/main/java/mage/client/game/GamePanel.java

@@ -1291,7 +1291,7 @@ public final class GamePanel extends javax.swing.JPanel {
         clearClosedCardHintsWindows();
 
         // too many dialogs can cause bad GUI performance, so limit it
-        if (cardHintsWindows.size() > CardHintsHelperDialog.GUI_MAX_CARD_HINTS_DIALOGS_PER_GAME) {
+        if (cardHintsWindows.size() >= CardHintsHelperDialog.GUI_MAX_CARD_HINTS_DIALOGS_PER_GAME) {
             // show last one instead
             cardHintsWindows.values().stream().reduce((a, b) -> b).ifPresent(CardHintsHelperDialog::show);
             return;

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

@@ -3,6 +3,7 @@ package mage.cards.a;
 import mage.MageInt;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.FlyingAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -28,7 +29,7 @@ public final class AarakocraSneak extends CardImpl {
         this.addAbility(FlyingAbility.getInstance());
 
         // When Aarakocra Sneak enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
     }
 
     private AarakocraSneak(final AarakocraSneak card) {

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

@@ -3,6 +3,7 @@ package mage.cards.a;
 import mage.MageInt;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.TrampleAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -28,7 +29,7 @@ public final class AvengingHunter extends CardImpl {
         this.addAbility(TrampleAbility.getInstance());
 
         // Whenever Avenging Hunter enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
     }
 
     private AvengingHunter(final AvengingHunter card) {

Mage.Sets/src/mage/cards/b/BloodboilSorcerer.java

@@ -8,6 +8,7 @@ import mage.abilities.costs.common.SacrificeTargetCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.combat.GoadTargetEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -31,7 +32,7 @@ public final class BloodboilSorcerer extends CardImpl {
         this.toughness = new MageInt(3);
 
         // Whenever Bloodboil Sorcerer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Crown of Madness — {1}{R}, Sacrifice an artifact or creature: Goad target creature.
         Ability ability = new SimpleActivatedAbility(new GoadTargetEffect(), new ManaCostsImpl<>("{1}{R}"));

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

@@ -8,6 +8,7 @@ import mage.abilities.condition.common.CompletedDungeonCondition;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.asthought.PlayFromNotOwnHandZoneTargetEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.TrampleAbility;
 import mage.cards.Card;
 import mage.cards.CardImpl;
@@ -38,7 +39,7 @@ public final class CavesOfChaosAdventurer extends CardImpl {
         this.addAbility(TrampleAbility.getInstance());
 
         // When Caves of Chaos Adventurer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Whenever Caves of Chaos Adventurer attacks, exile the top card of your library. If you've completed a dungeon, you may play that card this turn without paying its mana cost. Otherwise, you may play this card this turn.
         this.addAbility(new AttacksTriggeredAbility(new CavesOfChaosAdventurerEffect())

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

@@ -10,6 +10,7 @@ import mage.abilities.effects.common.CreateTokenEffect;
 import mage.abilities.effects.common.DrawCardSourceControllerEffect;
 import mage.abilities.effects.common.GainLifeEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -35,6 +36,7 @@ public final class DungeoneersPack extends CardImpl {
         ability.addEffect(new GainLifeEffect(3).setText(", gain 3 life"));
         ability.addEffect(new DrawCardSourceControllerEffect(1).concatBy(","));
         ability.addEffect(new CreateTokenEffect(new TreasureToken()).concatBy(", and"));
+        ability.addHint(InitiativeHint.instance);
         this.addAbility(ability);
     }
 

Mage.Sets/src/mage/cards/e/ExploreTheUnderdark.java

@@ -2,6 +2,7 @@ package mage.cards.e;
 
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.search.SearchLibraryPutInPlayEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -39,6 +40,7 @@ public final class ExploreTheUnderdark extends CardImpl {
 
         // You take the initiative.
         this.getSpellAbility().addEffect(new TakeTheInitiativeEffect().concatBy("<br>"));
+        this.getSpellAbility().addHint(InitiativeHint.instance);
     }
 
     private ExploreTheUnderdark(final ExploreTheUnderdark card) {

Mage.Sets/src/mage/cards/f/FeywildCaretaker.java

@@ -6,6 +6,7 @@ import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.condition.common.HaveInitiativeCondition;
 import mage.abilities.effects.common.CreateTokenEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -35,7 +36,7 @@ public final class FeywildCaretaker extends CardImpl {
         this.addAbility(new BeginningOfEndStepTriggeredAbility(
                 new CreateTokenEffect(new FaerieDragonToken()), TargetController.YOU,
                 HaveInitiativeCondition.instance, false
-        ));
+        ).addHint(InitiativeHint.instance));
     }
 
     private FeywildCaretaker(final FeywildCaretaker card) {

Mage.Sets/src/mage/cards/f/FromTheCatacombs.java

@@ -3,6 +3,7 @@ package mage.cards.f;
 import mage.abilities.effects.common.ReturnFromGraveyardToBattlefieldWithCounterTargetEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.replacement.LeaveBattlefieldExileTargetReplacementEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.EscapeAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -31,6 +32,7 @@ public final class FromTheCatacombs extends CardImpl {
 
         // You take the initiative.
         this.getSpellAbility().addEffect(new TakeTheInitiativeEffect().concatBy("<br>"));
+        this.getSpellAbility().addHint(InitiativeHint.instance);
 
         // Escape—{3}{B}{B}, Exile four other cards from your graveyard.
         this.addAbility(new EscapeAbility(this, "{3}{B}{B}", 5));

Mage.Sets/src/mage/cards/g/GoliathPaladin.java

@@ -3,6 +3,7 @@ package mage.cards.g;
 import mage.MageInt;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.VigilanceAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -28,7 +29,7 @@ public final class GoliathPaladin extends CardImpl {
         this.addAbility(VigilanceAbility.getInstance());
 
         // When Goliath Paladin enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
     }
 
     private GoliathPaladin(final GoliathPaladin card) {

Mage.Sets/src/mage/cards/i/ImoenMysticTrickster.java

@@ -9,6 +9,7 @@ import mage.abilities.condition.common.HaveInitiativeCondition;
 import mage.abilities.costs.mana.ManaCostsImpl;
 import mage.abilities.decorator.ConditionalOneShotEffect;
 import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.WardAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -44,6 +45,7 @@ public final class ImoenMysticTrickster extends CardImpl {
                 new DrawCardSourceControllerEffect(1), CompletedDungeonCondition.instance,
                 "Draw another card if you've completed a dungeon"
         ));
+        ability.addHint(InitiativeHint.instance);
         this.addAbility(ability.addHint(CompletedDungeonCondition.getHint()), new CompletedDungeonWatcher());
 
         // Choose a Background

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

@@ -6,6 +6,7 @@ import mage.abilities.common.CompletedDungeonTriggeredAbility;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.common.CreateTokenEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -28,6 +29,7 @@ public final class LootDispute extends CardImpl {
         // When Loot Dispute enters the battlefield, you take the initiative and create a Treasure token.
         Ability ability = new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect());
         ability.addEffect(new CreateTokenEffect(new TreasureToken()).setText("and create a Treasure token"));
+        ability.addHint(InitiativeHint.instance);
         this.addAbility(ability);
 
         // Whenever you attack a player who has the initiative, create a Treasure token.

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

@@ -6,6 +6,7 @@ import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.condition.common.HaveInitiativeCondition;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.LifelinkAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -40,7 +41,7 @@ public final class PassagewaySeer extends CardImpl {
         this.addAbility(new BeginningOfEndStepTriggeredAbility(
                 Zone.BATTLEFIELD, new AddCountersSourceEffect(CounterType.P1P1.createInstance()),
                 TargetController.YOU, HaveInitiativeCondition.instance, false
-        ));
+        ).addHint(InitiativeHint.instance));
     }
 
     private PassagewaySeer(final PassagewaySeer card) {

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

@@ -10,6 +10,7 @@ import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.continuous.BoostTargetEffect;
 import mage.abilities.effects.common.ruleModifying.CombatDamageByToughnessControlledEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -45,7 +46,7 @@ public final class RasaadYnBashir extends CardImpl {
                 new AttacksTriggeredAbility(new RasaadYnBashirEffect()),
                 HaveInitiativeCondition.instance, "Whenever {this} attacks, if you have the initiative, " +
                 "double the toughness of each creature you control until end of turn."
-        ));
+        ).addHint(InitiativeHint.instance));
 
         // Choose a Background
         this.addAbility(ChooseABackgroundAbility.getInstance());

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

@@ -10,6 +10,7 @@ import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.*;
@@ -39,7 +40,7 @@ public final class RavenloftAdventurer extends CardImpl {
         this.toughness = new MageInt(4);
 
         // When Ravenloft Adventurer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // If a creature an opponent controls would die, instead exile it and put a hit counter on it.
         this.addAbility(new SimpleStaticAbility(new RavenloftAdventurerReplacementEffect()));

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

@@ -9,6 +9,7 @@ import mage.abilities.decorator.ConditionalContinuousEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.continuous.BoostTargetEffect;
 import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.DeathtouchAbility;
 import mage.abilities.keyword.FirstStrikeAbility;
 import mage.abilities.keyword.MenaceAbility;
@@ -40,7 +41,7 @@ public final class RilsaRaelKingpin extends CardImpl {
         this.addAbility(DeathtouchAbility.getInstance());
 
         // When Rilsa Rael, Kingpin enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Whenever you attack, target attacking creature gains deathtouch until end of turn. If you've completed a dungeon, that creature also gets +5/+0 and gains first strike and menace until end of turn.
         Ability ability = new AttacksWithCreaturesTriggeredAbility(

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

@@ -7,6 +7,7 @@ import mage.abilities.condition.common.CompletedDungeonCondition;
 import mage.abilities.condition.common.HaveInitiativeCondition;
 import mage.abilities.decorator.ConditionalOneShotEffect;
 import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.MenaceAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -45,7 +46,7 @@ public final class SafanaCalimportCutthroat extends CardImpl {
                         "If you've completed a dungeon, create three of those tokens instead"
                 ),
                 TargetController.YOU, HaveInitiativeCondition.instance, false
-        ).addHint(CompletedDungeonCondition.getHint()), new CompletedDungeonWatcher());
+        ).addHint(CompletedDungeonCondition.getHint()).addHint(InitiativeHint.instance), new CompletedDungeonWatcher());
 
         // Choose a Background
         this.addAbility(ChooseABackgroundAbility.getInstance());

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

@@ -12,6 +12,7 @@ import mage.abilities.decorator.ConditionalManaEffect;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.mana.BasicManaEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.mana.SimpleManaAbility;
 import mage.cards.Card;
 import mage.cards.CardImpl;
@@ -35,7 +36,7 @@ public final class SarevoksTome extends CardImpl {
         super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT}, "{4}");
 
         // When Sarevok's Tome enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // {T}: Add {C}. If you have the initiative, add {C}{C} instead.
         this.addAbility(new SimpleManaAbility(

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

@@ -7,6 +7,7 @@ import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
 import mage.abilities.effects.keyword.ExploreTargetEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.ProtectionAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -49,7 +50,7 @@ public final class SeasonedDungeoneer extends CardImpl {
         this.toughness = new MageInt(4);
 
         // When Seasoned Dungeoneer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Whenever you attack, target attacking Cleric, Rogue, Warrior, or Wizard gains protection from creatures until end of turn. It explores.
         Ability ability = new AttacksWithCreaturesTriggeredAbility(

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

@@ -7,6 +7,7 @@ import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.common.continuous.GainAbilityTargetEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.DefenderAbility;
 import mage.abilities.keyword.HasteAbility;
 import mage.abilities.keyword.MenaceAbility;
@@ -35,7 +36,7 @@ public final class StirringBard extends CardImpl {
         this.addAbility(DefenderAbility.getInstance());
 
         // When Stirring Bard enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Mantle of Inspiration — {T}: Target creature gains menace and haste until end of turn.
         Ability ability = new SimpleActivatedAbility(

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

@@ -7,6 +7,7 @@ import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.condition.common.CompletedDungeonCondition;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -32,7 +33,7 @@ public final class TombOfHorrorsAdventurer extends CardImpl {
         this.toughness = new MageInt(4);
 
         // When Tomb of Horrors Adventurer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Whenever you cast your second spell each turn, copy it. If you've completed a dungeon, copy that spell twice instead. You may choose new targets for the copies.
         this.addAbility(new CastSecondSpellTriggeredAbility(new TombOfHorrorsAdventurerEffect())

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

@@ -5,6 +5,7 @@ import mage.abilities.common.BecomesBlockedAttachedTriggeredAbility;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.EquipAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -27,7 +28,7 @@ public final class TrailblazersTorch extends CardImpl {
         this.subtype.add(SubType.EQUIPMENT);
 
         // When Trailblazer's Torch enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Whenever equipped creature becomes blocked, it deals 2 damage to each creature blocking it.
         this.addAbility(new BecomesBlockedAttachedTriggeredAbility(

Mage.Sets/src/mage/cards/u/UndercellarSweep.java

@@ -7,6 +7,7 @@ import mage.abilities.condition.Condition;
 import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
 import mage.abilities.effects.common.CreateTokenEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -24,7 +25,7 @@ public final class UndercellarSweep extends CardImpl {
         super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{4}{W}");
 
         // When Undercellar Sweep enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Whenever you attack, if you or a player you're attacking has the initiative, you create two 1/1 white Soldier creature token that are tapped and attacking.
         this.addAbility(new ConditionalInterveningIfTriggeredAbility(

Mage.Sets/src/mage/cards/u/UnderdarkExplorer.java

@@ -3,6 +3,7 @@ package mage.cards.u;
 import mage.MageInt;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.MenaceAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -28,7 +29,7 @@ public final class UnderdarkExplorer extends CardImpl {
         this.addAbility(new MenaceAbility());
 
         // When Underdark Explorer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
     }
 
     private UnderdarkExplorer(final UnderdarkExplorer card) {

Mage.Sets/src/mage/cards/u/UndermountainAdventurer.java

@@ -8,6 +8,7 @@ import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.decorator.ConditionalManaEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
 import mage.abilities.effects.mana.BasicManaEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.keyword.VigilanceAbility;
 import mage.abilities.mana.SimpleManaAbility;
 import mage.cards.CardImpl;
@@ -36,7 +37,7 @@ public final class UndermountainAdventurer extends CardImpl {
         this.addAbility(VigilanceAbility.getInstance());
 
         // When Undermountain Adventurer enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // {T}: Add {G}{G}. If you've completed a dungeon, add six {G} instead.
         this.addAbility(new SimpleManaAbility(

Mage.Sets/src/mage/cards/v/ViciousBattlerager.java

@@ -6,6 +6,7 @@ import mage.abilities.common.BecomesBlockedByCreatureTriggeredAbility;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -30,7 +31,7 @@ public final class ViciousBattlerager extends CardImpl {
         this.toughness = new MageInt(5);
 
         // When Vicious Battlerager enters the battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // Spiked Retribution — Whenever Vicious Battlerager becomes blocked by a creature, that creature's controller loses 5 life.
         this.addAbility(new BecomesBlockedByCreatureTriggeredAbility(

Mage.Sets/src/mage/cards/w/WhitePlumeAdventurer.java

@@ -7,6 +7,7 @@ import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.condition.common.CompletedDungeonCondition;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.TakeTheInitiativeEffect;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -39,7 +40,7 @@ public final class WhitePlumeAdventurer extends CardImpl {
         this.toughness = new MageInt(3);
 
         // When White Plume Adventurer enters battlefield, you take the initiative.
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()));
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TakeTheInitiativeEffect()).addHint(InitiativeHint.instance));
 
         // At the beginning of each opponent's upkeep, untap a creature you control. If you've completed a dungeon, untap all creatures you control instead.
         this.addAbility(new BeginningOfUpkeepTriggeredAbility(

Mage.Verify/src/test/java/mage/verify/VerifyCardDataTest.java

@@ -16,6 +16,7 @@ import mage.abilities.effects.common.FightTargetsEffect;
 import mage.abilities.effects.common.counter.ProliferateEffect;
 import mage.abilities.effects.keyword.ScryEffect;
 import mage.abilities.hint.common.CitysBlessingHint;
+import mage.abilities.hint.common.InitiativeHint;
 import mage.abilities.hint.common.MonarchHint;
 import mage.abilities.keyword.*;
 import mage.cards.*;
@@ -2048,6 +2049,7 @@ public class VerifyCardDataTest {
         Map<Class, String> cardHints = new HashMap<>();
         cardHints.put(CitysBlessingHint.class, "city's blessing");
         cardHints.put(MonarchHint.class, "the monarch");
+        cardHints.put(InitiativeHint.class, "the initiative");
         for (Class hintClass : cardHints.keySet()) {
             String lookupText = cardHints.get(hintClass);
             boolean needHint = ref.text.contains(lookupText);

Mage/src/main/java/mage/abilities/hint/common/InitiativeHint.java

@@ -0,0 +1,37 @@
+package mage.abilities.hint.common;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.common.HaveInitiativeCondition;
+import mage.abilities.hint.ConditionHint;
+import mage.abilities.hint.Hint;
+import mage.game.Game;
+
+import java.util.Optional;
+
+/**
+ * @author JayDi85
+ */
+public enum InitiativeHint implements Hint {
+
+    instance;
+    private static final ConditionHint hint = new ConditionHint(HaveInitiativeCondition.instance, "You have the Initiative");
+
+    @Override
+    public String getText(Game game, Ability ability) {
+        String res = hint.getText(game, ability);
+        if (game.getInitiativeId() == null) {
+            // no initiative
+            return res + " (no Initiative in the game)";
+        } else {
+            // player
+            return res + Optional.ofNullable(game.getPlayer(game.getInitiativeId()))
+                    .map(p -> " (current owner: " + p.getName() + ")")
+                    .orElse("");
+        }
+    }
+
+    @Override
+    public Hint copy() {
+        return instance;
+    }
+}