*Fix Fan of Knives.

--HG--
branch : trunk

sql/updates/2689_world.sql

@@ -0,0 +1 @@
+INSERT IGNORE INTO `spell_linked_spell` VALUES (51723, 52874, 0, 'Fan Of Knives');

src/game/SpellAuras.cpp

@@ -6176,7 +6176,7 @@ void AuraEffect::PeriodicTick()
             // Haunting Spirits
             if (GetId() == 7057)
             {
-                m_target->CastSpell((Unit*) , m_amount , true);
+                m_target->CastSpell((Unit*)NULL , m_amount , true);
                 m_amplitude = irand (0 , 60 ) + 30;
                 m_amplitude *= IN_MILISECONDS;
                 break;

src/game/SpellEffects.cpp

@@ -4126,6 +4126,14 @@ void Spell::SpellDamageWeaponDmg(uint32 i)
                 if(m_caster->GetTypeId()==TYPEID_PLAYER)
                     ((Player*)m_caster)->AddComboPoints(unitTarget, 1);
             }
+            // Fan of Knives
+            if(m_spellInfo->SpellFamilyFlags[1] & 0x40000)
+            {
+                // 50% more damage with daggers
+                if (Item* item = ((Player*)m_caster)->GetWeaponForAttack(m_attackType))
+                    if (item->GetProto()->SubClass == ITEM_SUBCLASS_WEAPON_DAGGER)
+                        totalDamagePercentMod *= 1.5f;
+            }
             // Mutilate (for each hand)
             else if(m_spellInfo->SpellFamilyFlags[1] & 0x6)
             {