Use the following trick to defeat Aeralfos (small flying dragon with shield) in City In The Sky. When it flies in the air, wait for it to put its shield up and flaps its wings rapidly. Then, Z target its shield and use the Clawshot to pull it towards you. Slash it as many times as you can. Do not use the Clawshot while it is on the ground or it will pull you towards itself and slash you. Keep pulling it towards you and slashing it until the Aeralfos falls and dies.