* Minor formatting.

Mage.Tests/src/test/java/org/mage/test/cards/abilities/oneshot/sacrifice/MorticianBeetleTest.java

@@ -16,11 +16,19 @@ public class MorticianBeetleTest extends CardTestPlayerBase {
     @Test
     public void testSacrifice() {
         addCard(Zone.BATTLEFIELD, playerA, "Swamp", 4);
+        // Target opponent sacrifices a creature.
         addCard(Zone.HAND, playerA, "Cruel Edict");
+
+        // Target player sacrifices a creature and loses 1 life.
         addCard(Zone.HAND, playerA, "Geth's Verdict");
+        
+        // Whenever a player sacrifices a creature, you may put a +1/+1 counter on Mortician Beetle.
         addCard(Zone.BATTLEFIELD, playerA, "Mortician Beetle");
 
         addCard(Zone.BATTLEFIELD, playerB, "Savannah Lions");
+        
+        // First strike
+        // Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
         addCard(Zone.BATTLEFIELD, playerB, "Sigiled Paladin");
 
 

Mage/src/mage/abilities/Ability.java

@@ -362,6 +362,7 @@ public interface Ability extends Controllable, Serializable {
      * Returns true if this abilities source is in the zone for the ability
      * 
      * @param game
+     * @param source
      * @param checkLKI
      * @return 
      */

Mage/src/mage/abilities/AbilityImpl.java

@@ -458,7 +458,7 @@ public abstract class AbilityImpl<T extends AbilityImpl<T>> implements Ability {
     }
 
     @Override
-    public Costs getCosts() {
+    public Costs<Cost> getCosts() {
         return costs;
     }
 
@@ -484,7 +484,7 @@ public abstract class AbilityImpl<T extends AbilityImpl<T>> implements Ability {
     }
 
     @Override
-    public Costs getOptionalCosts() {
+    public Costs<Cost> getOptionalCosts() {
         return optionalCosts;
     }
 

Mage/src/mage/abilities/TriggeredAbilityImpl.java

@@ -39,6 +39,7 @@ import mage.players.Player;
 /**
  *
  * @author BetaSteward_at_googlemail.com
+ * @param <T>
  */
 public abstract class TriggeredAbilityImpl<T extends TriggeredAbilityImpl<T>> extends AbilityImpl<T> implements TriggeredAbility {