More poweraction parsing work.

src/engine/wpak/PowerActionParser.java

@@ -146,6 +146,12 @@ public class PowerActionParser {
                     effectDescription.type = headerIterator.next();
                     powerActionEntry.effects.add(effectDescription);
                     break;
+                case "Block":
+                    effectDescription = new EffectDescription();
+                    effectDescription.effect_id = headerIterator.next();
+                    effectDescription.level = Integer.parseInt(headerIterator.next());
+                    powerActionEntry.effects.add(effectDescription);
+                    break;
                 case "Teleport":// No arguments for these tags
                 case "TreeChoke":
                     break;