Mine

class npc_blood_beast : public CreatureScript
{
    public:
        npc_blood_beast() : CreatureScript("npc_blood_beast") { }

        struct npc_blood_beastAI : public ScriptedAI
        {
            npc_blood_beastAI(Creature* creature) : ScriptedAI(creature)
            {
                instance = creature->GetInstanceScript();
            }

			void reset()
			{
			}

            void UpdateAI(const uint32 diff)
            {


                if (me->isAttackReady())
                {
                  //If we are within range melee the target
                  if (me->IsWithinMeleeRange(me->getVictim()))
                  {
                    if (Creature* saurfang = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))

                    me->AttackerStateUpdate(me->getVictim());
                    me->resetAttackTimer();
                  }
                }
       }

        private:

        };

        CreatureAI* GetAI(Creature* creature) const
        {
            return GetIcecrownCitadelAI<npc_blood_beastAI>(creature);
        }
};