Add hints to several cards

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

@@ -30,11 +30,7 @@
  */
 public final class BloodlineKeeper extends CardImpl {
 
-    private static final FilterControlledPermanent filter = new FilterControlledPermanent("you control five or more Vampires");
-
-    static {
-        filter.add(SubType.VAMPIRE.getPredicate());
-    }
+    private static final FilterControlledPermanent filter = new FilterControlledPermanent(SubType.VAMPIRE, "you control five or more Vampires");
 
     public BloodlineKeeper(UUID ownerId, CardSetInfo setInfo) {
         super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{B}{B}");

Mage.Sets/src/mage/cards/k/KnightOfTheEbonLegion.java

@@ -10,6 +10,7 @@
 import mage.abilities.effects.common.continuous.BoostSourceEffect;
 import mage.abilities.effects.common.continuous.GainAbilitySourceEffect;
 import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.abilities.hint.ConditionHint;
 import mage.abilities.keyword.DeathtouchAbility;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
@@ -52,7 +53,7 @@ public KnightOfTheEbonLegion(UUID ownerId, CardSetInfo setInfo) {
                         TargetController.YOU, false
                 ), KnightOfTheEbonLegionCondition.instance, "At the beginning of your end step, " +
                 "if a player lost 4 or more life this turn, put a +1/+1 counter on {this}."
-        ));
+        ).addHint(new ConditionHint(KnightOfTheEbonLegionCondition.instance, "A player lost 4 or more life this turn")));
     }
 
     private KnightOfTheEbonLegion(final KnightOfTheEbonLegion card) {

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

@@ -1,4 +1,3 @@
-
 package mage.cards.m;
 
 import java.util.Set;
@@ -7,7 +6,9 @@
 import mage.ObjectColor;
 import mage.abilities.Ability;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.dynamicvalue.common.PermanentsOnBattlefieldCount;
 import mage.abilities.effects.OneShotEffect;
+import mage.abilities.hint.ValueHint;
 import mage.abilities.keyword.FlyingAbility;
 import mage.abilities.keyword.ProtectionAbility;
 import mage.cards.CardImpl;
@@ -33,9 +34,16 @@ public MalakirBloodwitch(UUID ownerId, CardSetInfo setInfo) {
         this.power = new MageInt(4);
         this.toughness = new MageInt(4);
 
+        // Flying
         this.addAbility(FlyingAbility.getInstance());
+
+        // Protection from white
         this.addAbility(ProtectionAbility.from(ObjectColor.WHITE));
-        this.addAbility(new EntersBattlefieldTriggeredAbility(new MalakirBloodwitchEffect(), false));
+
+        // When Malakir Bloodwitch enters the battlefield, each opponent loses life equal to the number of Vampires you control. You gain life equal to the life lost this way.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new MalakirBloodwitchEffect(), false)
+                .addHint(new ValueHint("Vampires you control", new PermanentsOnBattlefieldCount(new FilterControlledPermanent(SubType.VAMPIRE))))
+        );
     }
 
     private MalakirBloodwitch(final MalakirBloodwitch card) {

Mage.Sets/src/mage/cards/o/OliviasWrath.java

@@ -43,6 +43,7 @@ public OliviasWrath(UUID ownerId, CardSetInfo setInfo) {
                 "each non-Vampire creature gets -X/-X until end of turn, "
                 + "where X is the number of Vampires you control"
         ));
+        this.getSpellAbility().addHint(hint);
     }
 
     private OliviasWrath(final OliviasWrath card) {

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

@@ -1,11 +1,11 @@
-
 package mage.cards.s;
 
 import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.common.BeginningOfEndStepTriggeredAbility;
 import mage.abilities.condition.common.OpponentLostLifeCondition;
 import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.abilities.hint.ConditionHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -35,7 +35,8 @@ public SyggRiverCutthroat(UUID ownerId, CardSetInfo setInfo) {
                 new DrawCardSourceControllerEffect(1),
                 TargetController.ANY,
                 new OpponentLostLifeCondition(ComparisonType.MORE_THAN, 2),
-                true));
+                true
+        ).addHint(new ConditionHint(new OpponentLostLifeCondition(ComparisonType.MORE_THAN, 2), "An opponent lost 3 or more life this turn")));
     }
 
     private SyggRiverCutthroat(final SyggRiverCutthroat card) {

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

@@ -11,6 +11,7 @@
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.hint.ConditionHint;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.cards.CardsImpl;
@@ -46,7 +47,7 @@ public TheBookOfVileDarkness(UUID ownerId, CardSetInfo setInfo) {
         this.addAbility(new BeginningOfEndStepTriggeredAbility(
                 Zone.BATTLEFIELD, new CreateTokenEffect(new ZombieToken()), TargetController.YOU,
                 TheBookOfVileDarknessCondition.instance, false
-        ));
+        ).addHint(new ConditionHint(TheBookOfVileDarknessCondition.instance, "You lost 2 or more life this turn")));
 
         // {T}, Exile The Book of Vile Darkness and artifacts you control named Eye of Vecna and Hand of Vecna: Create Vecna, a legendary 8/8 black Zombie God creature token with indestructible and all triggered abilities of the exiled cards.
         Ability ability = new SimpleActivatedAbility(new TheBookOfVileDarknessEffect(), new TapSourceCost());