diff --git a/sql/updates/world/2014_10_30_00_world.sql b/sql/updates/world/2014_10_30_00_world.sql
new file mode 100644
index 0000000000..716362faf6
--- /dev/null
+++ b/sql/updates/world/2014_10_30_00_world.sql
@@ -0,0 +1,6 @@
+DELETE FROM `rbac_permissions` WHERE `id`=776;
+INSERT INTO `rbac_permissions` (`id`, `name`) VALUES (776, 'Command: debug phase');
+
+DELETE FROM `rbac_linked_permissions` WHERE `id`=192 AND linkedId=776;
+INSERT INTO `rbac_linked_permissions` (`id`, `linkedId`) VALUES (192, 776);
+
diff --git a/src/server/game/Globals/ObjectMgr.cpp b/src/server/game/Globals/ObjectMgr.cpp
index 542799a80c..5c9012facd 100644
--- a/src/server/game/Globals/ObjectMgr.cpp
+++ b/src/server/game/Globals/ObjectMgr.cpp
@@ -1776,6 +1776,12 @@ void ObjectMgr::LoadCreatures()
             data.phaseMask = 1;
         }
 
+        if (data.phaseGroup && GetPhasesForGroup(data.phaseGroup).empty())
+        {
+            TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u Entry: %u) with non-existing `phasegroup` (%u) set, `phasegroup` set to 0", guid, data.id, data.phaseGroup);
+            data.phaseGroup = 0;
+        }
+
         if (data.phaseGroup && data.phaseid)
         {
             TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) with both `phaseid` and `phasegroup` set, `phasegroup` set to 0", guid, data.id);
@@ -2084,6 +2090,12 @@ void ObjectMgr::LoadGameobjects()
         data.phaseid = fields[18].GetUInt32();
         data.phaseGroup = fields[19].GetUInt32();
 
+        if (data.phaseGroup && GetPhasesForGroup(data.phaseGroup).empty())
+        {
+            TC_LOG_ERROR("sql.sql", "Table `gameobject` has gameobject (GUID: %u Entry: %u) with non-existing `phasegroup` (%u) set, `phasegroup` set to 0", guid, data.id, data.phaseGroup);
+            data.phaseGroup = 0;
+        }
+
         if (data.phaseGroup && data.phaseid)
         {
             TC_LOG_ERROR("sql.sql", "Table `gameobject` have gameobject (GUID: %u Entry: %u) with both `phaseid` and `phasegroup` set, `phasegroup` set to 0", guid, data.id);
diff --git a/src/server/scripts/Commands/cs_debug.cpp b/src/server/scripts/Commands/cs_debug.cpp
index cb4296a780..b5e2214505 100644
--- a/src/server/scripts/Commands/cs_debug.cpp
+++ b/src/server/scripts/Commands/cs_debug.cpp
@@ -1389,14 +1389,28 @@ public:
         return true;
     }
 
-    static bool HandleDebugPhaseCommand(ChatHandler* /*handler*/, char const* /*args*/)
+    static bool HandleDebugPhaseCommand(ChatHandler* handler, char const* /*args*/)
     {
-        /*/
-        Unit* unit = handler->getSelectedUnit();
-        Player* player = handler->GetSession()->GetPlayer();
-        if (unit && unit->GetTypeId() == TYPEID_PLAYER)
-            player = unit->ToPlayer();
-        */
+        Unit* target = handler->getSelectedUnit();
+
+        if (!target)
+        {
+            handler->SendSysMessage(LANG_SELECT_CREATURE);
+            handler->SetSentErrorMessage(true);
+            return false;
+        }
+
+        std::stringstream phases;
+
+        for (uint32 phase : target->GetPhases())
+        {
+            phases << phase << " ";
+        }
+
+        if (!phases.str().empty())
+            handler->PSendSysMessage("Target's current phases: %s", phases.str().c_str());
+        else
+            handler->SendSysMessage("Target is not phased");
         return true;
     }
 };
diff --git a/src/server/scripts/Commands/cs_npc.cpp b/src/server/scripts/Commands/cs_npc.cpp
index e27fc8d7a2..40bbee35e4 100644
--- a/src/server/scripts/Commands/cs_npc.cpp
+++ b/src/server/scripts/Commands/cs_npc.cpp
@@ -206,7 +206,7 @@ public:
             { "model",      rbac::RBAC_PERM_COMMAND_NPC_SET_MODEL,     false, &HandleNpcSetModelCommand,         "", NULL },
             { "movetype",   rbac::RBAC_PERM_COMMAND_NPC_SET_MOVETYPE,  false, &HandleNpcSetMoveTypeCommand,      "", NULL },
             { "phase",      rbac::RBAC_PERM_COMMAND_NPC_SET_PHASE,     false, &HandleNpcSetPhaseCommand,         "", NULL },
-            { "phasegroup", rbac::RBAC_PERM_COMMAND_NPC_SET_DATA,      false, &HandleNpcSetPhaseGroup,           "", NULL },
+            { "phasegroup", rbac::RBAC_PERM_COMMAND_NPC_SET_PHASE,     false, &HandleNpcSetPhaseGroup, "", NULL },
             { "spawndist",  rbac::RBAC_PERM_COMMAND_NPC_SET_SPAWNDIST, false, &HandleNpcSetSpawnDistCommand,     "", NULL },
             { "spawntime",  rbac::RBAC_PERM_COMMAND_NPC_SET_SPAWNTIME, false, &HandleNpcSetSpawnTimeCommand,     "", NULL },
             { "data",       rbac::RBAC_PERM_COMMAND_NPC_SET_DATA,      false, &HandleNpcSetDataCommand,          "", NULL },