//m_uiArcaneExplosion_Timer
        if (m_uiArcaneExplosion_Timer < uiDiff)
        {
            
            bool m_bInMeleeRange = false;
            Unit *target = NULL;
            std::vector<Unit*> target_list;
            ThreatList const& m_threatlist = m_creature->getThreatManager().getThreatList();
            for (ThreatList::const_iterator i = m_threatlist.begin(); i!= m_threatlist.end();++i)
            {
                if ((*i) != NULL && (*i) != 0)
                {
                    Unit* pUnit = Unit::GetUnit((*m_creature), (*i)->getUnitGuid());
                    if (pUnit && (pUnit->GetTypeId() == TYPEID_PLAYER) && pUnit->IsWithinDistInMap(m_creature, ATTACK_DISTANCE) && pUnit->GetMaxHealth() > 5000)
                        m_bInMeleeRange = true;
                }
            }
            if (m_bInMeleeRange)
            {
                DoCastSpellIfCan(m_creature, SPELL_ARCANE_EXPLOSION);
                m_uiArcaneExplosion_Timer = urand(4000, 6000);
            }
        }
        else
            m_uiArcaneExplosion_Timer -= uiDiff;