Added gate you control hint for cards;

Mage/src/main/java/mage/abilities/dynamicvalue/common/GateYouControlCount.java

@@ -0,0 +1,43 @@
+package mage.abilities.dynamicvalue.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.constants.SubType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledPermanent;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.game.Game;
+
+/**
+ * @author JayDi85
+ */
+public enum GateYouControlCount implements DynamicValue {
+
+    instance;
+    private static final FilterPermanent filter = new FilterControlledPermanent("Gate you control");
+
+    static {
+        filter.add(new SubtypePredicate(SubType.GATE));
+    }
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return game.getBattlefield().count(filter, sourceAbility.getSourceId(), sourceAbility.getControllerId(), game);
+    }
+
+    @Override
+    public GateYouControlCount copy() {
+        return instance;
+    }
+
+    @Override
+    public String toString() {
+        return "X";
+    }
+
+    @Override
+    public String getMessage() {
+        return "gate you control";
+    }
+}

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

@@ -0,0 +1,27 @@
+package mage.abilities.hint.common;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.common.GateYouControlCount;
+import mage.abilities.hint.Hint;
+import mage.abilities.hint.ValueHint;
+import mage.game.Game;
+
+/**
+ * @author JayDi85
+ */
+public enum GateYouControlHint implements Hint {
+
+    instance;
+
+    private static final Hint hint = new ValueHint("Gate you control", GateYouControlCount.instance);
+
+    @Override
+    public String getText(Game game, Ability ability) {
+        return hint.getText(game, ability);
+    }
+
+    @Override
+    public Hint copy() {
+        return instance;
+    }
+}