[MID] Implemented Candlelit Cavalry

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

@@ -0,0 +1,44 @@
+package mage.abilities.hint.common;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.hint.Hint;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public enum CovenHint implements Hint {
+    instance;
+
+    @Override
+    public String getText(Game game, Ability ability) {
+        List<String> powers = game
+                .getBattlefield()
+                .getActivePermanents(
+                        StaticFilters.FILTER_CONTROLLED_CREATURE,
+                        ability.getControllerId(), ability.getSourceId(), game
+                )
+                .stream()
+                .filter(Objects::nonNull)
+                .map(MageObject::getPower)
+                .mapToInt(MageInt::getValue)
+                .distinct()
+                .sorted()
+                .mapToObj(String::valueOf)
+                .collect(Collectors.toList());
+        return "Different powers among creatures you control: " + powers.size()
+                + (powers.size() > 0 ? " (" + String.join(", ", powers) + ')' : "");
+    }
+
+    @Override
+    public Hint copy() {
+        return this;
+    }
+}