[DSK] Implement Overlord of the Floodpits

Mage/src/main/java/mage/abilities/keyword/ImpendingAbility.java

@@ -0,0 +1,46 @@
+package mage.abilities.keyword;
+
+import mage.abilities.Ability;
+import mage.abilities.costs.AlternativeSourceCostsImpl;
+import mage.game.Game;
+import mage.util.CardUtil;
+
+/**
+ * TODO: Implement this
+ *
+ * @author TheElk801
+ */
+public class ImpendingAbility extends AlternativeSourceCostsImpl {
+
+    private static final String IMPENDING_KEYWORD = "Impending";
+    private static final String IMPENDING_REMINDER = "If you cast this spell for its impending cost, " +
+            "it enters with %s time counters and isn't a creature until the last is removed. " +
+            "At the beginning of your end step, remove a time counter from it.";
+
+    public ImpendingAbility(String manaString) {
+        this(manaString, 4);
+    }
+
+    public ImpendingAbility(String manaString, int amount) {
+        super(IMPENDING_KEYWORD + ' ' + amount, String.format(IMPENDING_REMINDER, CardUtil.numberToText(amount)), manaString);
+        this.setRuleAtTheTop(true);
+    }
+
+    private ImpendingAbility(final ImpendingAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public ImpendingAbility copy() {
+        return new ImpendingAbility(this);
+    }
+
+    @Override
+    public boolean isAvailable(Ability source, Game game) {
+        return true;
+    }
+
+    public static String getActivationKey() {
+        return getActivationKey(IMPENDING_KEYWORD);
+    }
+}