[TLA] Implement Zhao, the Moon Slayer

Mage/src/main/java/mage/abilities/effects/common/continuous/NonbasicLandsAreMountainsEffect.java

@@ -0,0 +1,45 @@
+package mage.abilities.effects.common.continuous;
+
+import mage.abilities.Ability;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.abilities.mana.RedManaAbility;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+/**
+ * @author LevelX2
+ */
+public class NonbasicLandsAreMountainsEffect extends ContinuousEffectImpl {
+
+    public NonbasicLandsAreMountainsEffect() {
+        super(Duration.WhileOnBattlefield, Layer.TypeChangingEffects_4, SubLayer.NA, Outcome.Detriment);
+        this.staticText = "nonbasic lands are Mountains";
+        this.dependencyTypes.add(DependencyType.BecomeMountain);
+        this.dependendToTypes.add(DependencyType.BecomeNonbasicLand);
+    }
+
+    private NonbasicLandsAreMountainsEffect(final NonbasicLandsAreMountainsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public NonbasicLandsAreMountainsEffect copy() {
+        return new NonbasicLandsAreMountainsEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        for (Permanent land : game.getBattlefield().getActivePermanents(StaticFilters.FILTER_LANDS_NONBASIC, source.getControllerId(), game)) {
+            // 305.7 Note that this doesn't remove any abilities that were granted to the land by other effects
+            // So the ability removing has to be done before Layer 6
+            // Lands have their mana ability intrinsically, so that is added in layer 4
+            land.removeAllSubTypes(game, SubTypeSet.NonBasicLandType);
+            land.addSubType(game, SubType.MOUNTAIN);
+            land.removeAllAbilities(source.getSourceId(), game);
+            land.addAbility(new RedManaAbility(), source.getSourceId(), game);
+        }
+        return true;
+    }
+}

Mage/src/main/java/mage/counters/CounterType.java

@@ -46,6 +46,7 @@ public enum CounterType {
     COLLECTION("collection"),
     COMPONENT("component"),
     CONTESTED("contested"),
+    CONQUEROR("conqueror"),
     CORPSE("corpse"),
     CORRUPTION("corruption"),
     CREDIT("credit"),