Misc fixes

Source/Game/AI/SmartScripts/SmartScript.cs

@@ -1403,8 +1403,8 @@ namespace Game.AI
                         break;
 
                     // Set the timer to 1 ms so the path will be resumed on next update loop
-                    if (((SmartAI)_me.GetAI()).CanResumePath())
-                        ((SmartAI)_me.GetAI()).SetWPPauseTimer(1);
+                    if (_me.GetAI<SmartAI>().CanResumePath())
+                        _me.GetAI<SmartAI>().SetWPPauseTimer(1);
                     break;
                 }
                 case SmartActions.SetOrientation:

Source/Game/Chat/Commands/MMapsCommands.cs

@@ -105,7 +105,7 @@ namespace Game.Chat
             player.GetPosition(out x, out y, out z);
 
             handler.SendSysMessage("{0:D4}{1:D2}{2:D2}.mmtile", player.GetMapId(), gy, gx);
-            handler.SendSysMessage("gridloc [{0}, {1}]", gx, gy);
+            handler.SendSysMessage("tileloc [{0}, {1}]", gx, gy);
 
             // calculate navmesh tile location
             uint terrainMapId = PhasingHandler.GetTerrainMapId(player.GetPhaseShift(), player.GetMap(), x, y);

Source/Game/Chat/Commands/MiscCommands.cs

@@ -187,7 +187,7 @@ namespace Game.Chat
             return true;
         }
 
-        [CommandNonGroup("additemset", RBACPermissions.CommandAdditemset)]
+        [CommandNonGroup("additem set", RBACPermissions.CommandAdditemset)]
         static bool HandleAddItemSetCommand(CommandHandler handler, StringArguments args)
         {
             if (args.Empty())

Source/Game/Spells/SpellManager.cs

@@ -4328,6 +4328,14 @@ namespace Game.Entities
                 spellInfo.NegativeEffects[2] = true;
             });
 
+            // Headless Horseman Climax - Return Head (Hallow End)
+            // Headless Horseman Climax - Body Regen (confuse only - removed on death)
+            // Headless Horseman Climax - Head Is Dead
+            ApplySpellFix(new[] { 42401, 43105, 42428 }, spellInfo =>
+            {
+                spellInfo.Attributes |= SpellAttr0.UnaffectedByInvulnerability;
+            });
+
             foreach (var spellInfo in mSpellInfoMap.Values)
             {
                 // Fix range for trajectory triggered spell