[ONE] Implement Skrelv's Hive

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

@@ -0,0 +1,64 @@
+package mage.cards.s;
+
+import java.util.UUID;
+
+import mage.abilities.Ability;
+import mage.abilities.common.BeginningOfUpkeepTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.common.CorruptedCondition;
+import mage.abilities.decorator.ConditionalContinuousEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.LoseLifeSourceControllerEffect;
+import mage.abilities.effects.common.continuous.GainAbilityAllEffect;
+import mage.abilities.keyword.LifelinkAbility;
+import mage.abilities.keyword.ToxicAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.AbilityWord;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.TargetController;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledCreaturePermanent;
+import mage.filter.predicate.mageobject.AbilityPredicate;
+import mage.game.permanent.token.PhyrexianMiteToken;
+
+/**
+ * @author TheElk801
+ */
+public final class SkrelvsHive extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterControlledCreaturePermanent();
+
+    static {
+        filter.add(new AbilityPredicate(ToxicAbility.class));
+    }
+
+    public SkrelvsHive(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{1}{W}");
+
+        // At the beginning of your upkeep, you lose 1 life and create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block."
+        Ability ability = new BeginningOfUpkeepTriggeredAbility(
+                new LoseLifeSourceControllerEffect(1), TargetController.YOU, false
+        );
+        ability.addEffect(new CreateTokenEffect(new PhyrexianMiteToken()).concatBy("and"));
+        this.addAbility(ability);
+
+        // Corrupted -- As long as an opponent has three or more poison counters, creatures you control with toxic have lifelink.
+        this.addAbility(new SimpleStaticAbility(new ConditionalContinuousEffect(
+                new GainAbilityAllEffect(
+                        LifelinkAbility.getInstance(), Duration.WhileOnBattlefield, filter
+                ), CorruptedCondition.instance, "as long as an opponent has three " +
+                "or more poison counters, creatures you control with toxic have lifelink"
+        )).setAbilityWord(AbilityWord.CORRUPTED).addHint(CorruptedCondition.getHint()));
+    }
+
+    private SkrelvsHive(final SkrelvsHive card) {
+        super(card);
+    }
+
+    @Override
+    public SkrelvsHive copy() {
+        return new SkrelvsHive(this);
+    }
+}

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

@@ -36,6 +36,7 @@ public final class PhyrexiaAllWillBeOne extends ExpansionSet {
         cards.add(new SetCardInfo("Plains", 272, Rarity.LAND, mage.cards.basiclands.Plains.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Razorverge Thicket", 257, Rarity.RARE, mage.cards.r.RazorvergeThicket.class));
         cards.add(new SetCardInfo("Seachrome Coast", 258, Rarity.RARE, mage.cards.s.SeachromeCoast.class));
+        cards.add(new SetCardInfo("Skrelv's Hive", 34, Rarity.RARE, mage.cards.s.SkrelvsHive.class));
         cards.add(new SetCardInfo("Swamp", 274, Rarity.LAND, mage.cards.basiclands.Swamp.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("The Monumental Facade", 255, Rarity.RARE, mage.cards.t.TheMonumentalFacade.class));
     }

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

@@ -0,0 +1,40 @@
+package mage.abilities.condition.common;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.Condition;
+import mage.abilities.hint.ConditionHint;
+import mage.abilities.hint.Hint;
+import mage.counters.CounterType;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.players.Player;
+
+import java.util.Objects;
+
+/**
+ * @author TheElk801
+ */
+
+public enum CorruptedCondition implements Condition {
+    instance;
+    private static final Hint hint = new ConditionHint(instance, "An opponent has three or more poison counters");
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return game.getOpponents(source.getControllerId())
+                .stream()
+                .map(game::getPlayer)
+                .filter(Objects::nonNull)
+                .map(Player::getCounters)
+                .anyMatch(counters -> counters.getCount(CounterType.POISON) >= 3);
+    }
+
+    @Override
+    public String toString() {
+        return "an opponent has three or more poison counters";
+    }
+
+    public static Hint getHint() {
+        return hint;
+    }
+}

Mage/src/main/java/mage/constants/AbilityWord.java

@@ -17,6 +17,7 @@ public enum AbilityWord {
     COHORT("Cohort"),
     CONSTELLATION("Constellation"),
     CONVERGE("Converge"),
+    CORRUPTED("Corrupted"),
     COUNCILS_DILEMMA("Council's dilemma"),
     COVEN("Coven"),
     DELIRIUM("Delirium"),