diff --git a/sql/updates/2687_world.sql b/sql/updates/2687_world.sql
new file mode 100644
index 0000000000..a36a0ddf11
--- /dev/null
+++ b/sql/updates/2687_world.sql
@@ -0,0 +1,4 @@
+DELETE FROM `spell_proc_event` WHERE `entry` IN (44545, 44543);
+INSERT INTO `spell_proc_event` VALUES
+(44545, 0x00, 3, 1049120, 4096, 0, 65536, 0x0000000, 0.000000, 15.000000, 0),
+(44543, 0x00, 3, 1049120, 4096, 0, 65536, 0x0000000, 0.000000, 7.000000, 0),
diff --git a/src/game/SpellAuras.cpp b/src/game/SpellAuras.cpp
index 3c427706d1..5479ea7f7c 100644
--- a/src/game/SpellAuras.cpp
+++ b/src/game/SpellAuras.cpp
@@ -426,24 +426,22 @@ m_auraSlot(MAX_AURAS), m_auraLevel(1), m_procCharges(0), m_stackAmount(1),m_aura
     // Aura is positive when it is casted by friend and at least one aura is positive
     // or when it is casted by enemy and  at least one aura is negative
     bool swap=false;
-    if (!caster || caster==target)
-        m_positive=IsPositiveSpell(m_spellProto->Id);
+    if (!caster || caster==target) // caster == target - 1 negative effect is enough for aura to be negative
+        m_positive = false;
     else
-    {
         m_positive = !caster->IsHostileTo(m_target);
-        for (uint8 i=0;i<MAX_SPELL_EFFECTS;++i)
+    for (uint8 i=0;i<MAX_SPELL_EFFECTS;++i)
+    {
+        if (!(1<<i & GetEffectMask()))
+            continue;
+        if (m_positive == IsPositiveEffect(GetId(), i))
         {
-            if (!(1<<i & GetEffectMask()))
-                continue;
-            if (m_positive == IsPositiveEffect(GetId(), i))
-            {
-                swap = true;
-                break;
-            }
+            swap = true;
+            break;
         }
-        if (!swap)
-            m_positive=!m_positive;
     }
+    if (!swap)
+        m_positive=!m_positive;
 }
 
 Aura::~Aura()
diff --git a/src/game/SpellMgr.cpp b/src/game/SpellMgr.cpp
index c5c70b0d92..af8a04740f 100644
--- a/src/game/SpellMgr.cpp
+++ b/src/game/SpellMgr.cpp
@@ -676,7 +676,23 @@ bool IsPositiveEffect(uint32 spellId, uint32 effIndex, bool deep)
                     {
                         case SPELLMOD_COST:                 // dependent from bas point sign (negative -> positive)
                             if(spellproto->CalculateSimpleValue(effIndex) > 0)
-                                return false;
+                            {
+                                if (!deep)
+                                {
+                                    bool negative = true;
+                                    for (uint8 i=0;i<MAX_SPELL_EFFECTS;++i)
+                                    {
+                                        if (i != effIndex)
+                                            if (IsPositiveEffect(spellId, i, true))
+                                            {
+                                                negative = false;
+                                                break;
+                                            }
+                                    }
+                                    if (negative)
+                                        return false;
+                                }
+                            }
                             break;
                         default:
                             break;