The Guide: The Jagrafess

Name: The Mighty Jagrafess of the Holy Hadrojassic Maxarodenfoe 

Also known as:  Max,The Jagrafess 

Home Planet: Jagrafessfold Breeding Grounds

Home Era: 200,000

Appearances: DW: The Long Game

Information:

The Jagrafess was an ancient, enormous, grey-skinned monster which contains a huge amount of heat, fat, muscle and water, that needed to stay cool in order to remain alive. It was placed in charge of the ersatz Fourth Great and Bountiful Human Empire when it was first formed, in the year 199,909. Outside of its home planet, only a giant facility such as Satellite Five could produce enough cold air to sustain its life. If no cold air is supplied, the Jagrafess would overheat and explode!The Ninth Doctor discovered that the Fourth Great and Bountiful Human Empire was being controlled by the Jagrafess in  via the news-broadcasting space station Satellite Five, located in Earth orbit.The Jagrafess could not operate Satellite Five's controls by itself, so human called the Editor carried out its orders.

 Also:

1.The Jagrafess was part of the Daleks master plan which a stratagem spanning several hundred years. After its death, the Daleks went on to other stratagems and renamed the Satellite the Game Station.

2. Rose mentioned The Jagrafess when trying to ward off the Sycorax and trying to get them to leave the earth but it didnt have the desired effect.