Index: game/SpellEffects.cpp
===================================================================
--- game/SpellEffects.cpp	(revision 5129)
+++ game/SpellEffects.cpp	(working copy)
@@ -1076,6 +1076,25 @@
             return;
         }
 
+        // Nigh Invulnerability Belt
+        case 30458:
+        {
+            if(m_caster->GetTypeId() != TYPEID_PLAYER)
+                return;
+
+            uint32 spell_id = 0;
+
+            uint32 roll = urand(0, 99);
+
+            if(roll < 10)                                    // 10% for backfire (off-like chance unknown)
+                spell_id = 30457;
+            else
+                spell_id = 30456;
+
+            m_caster->CastSpell(m_caster,spell_id,true,NULL);
+            return;
+        }
+
         //Warrior's Wrath
         case 21977:
         {