Was a robotic inanimate dragon piloted by Lord Zedd.
Was a neutral and powerful god sent to earth to protect the harmony of the universe, as the war between the Dairangers and the Gorma was threatening said harmony. To carry out this mission, it would go to great lengths, such as killing innocent people or destroying cities as a warning to humanity.
Was a solely evil War Zord.
It was never shown to run out of power.
Was a gigantic evil Zord created and piloted by Lord Zedd. It displayed the power to destroy entire planets, but never formed a real threat as it kept running out of power before doing any real damage.