Mad Mind of Bophemeral The Mad Mind of Bophemeral was a computer created by the Constructors of Destiny which took part in the Millennium War . It was later known as the Great Attractor . Biography . The Constructors of Destiny developed a computer built into the very universe to find the ultimate truth . Despite the protests of a Time Lord from the future and the Xeraphin , the Constructors of Destiny built the Great Attractor . After it was activated , its mind snapped and it annihilated its creators . It built an army using Block Transfer Computation s . The army went out to gather the knowledge that could turn the Mad Mind into a god . The Mad Mind took over all the robot ic races almost immediately . The living races in the universe banded together in order to defeat this army . Their army , made of over a thousand fleets from as many planet s , started the Millennium War of 150 million BC , lasting over a thousand years . The first move was made when the Mad Mind attempted to use a dark matter cloud in the Rift of Perseus but was stopped by the Dæmon s . The Mad Mind tried to create a wormhole in the Horsehead Nebula , which would have killed quintillions , but were stopped by the Osiran s . A thousand of the Mad Mind ' s fleets were destroyed when the Euterpian s and Greld , using the battle shroud of the Semquess and wielding the Omnethoth , destroyed the galaxy containing the fleets . The Mad Mind ravaged Kastria and destroyed the Kastrian fleet when the Mad Mind turned their computers against them . The Exxilons joined forces with the Uxariean s to destroy the fleets in the Andromeda Galaxy . They were caught in a trap that led to their eventual downfall and the destruction of the Crab Nebula . A Mad Mind drone factory was attacked in a pincer movement by the Sontaran fleet and the Rutan Host . They failed and their entire army was blasted into a black hole within seconds . The Grey Hegemony and the Influence of Light attempted a psychic attack on the Mad Mind , but they were both mentally damaged in the attack . The Time Lord s , led by Rassilon , eventually ignored their non - intervention policy and joined the fight . The Masksmakers of the Pageant , the Faction Paradox and the Ministers of Grace also came from the future to help the war effort . The final event in the war was fought against the Mad Mind itself . The Nimon s , with support from the Osirans , dropped ten million quantum collapsars into the Mad Mind . While the Mad Mind was breached , the Time Lords caught it in a time loop , being forced to repeat the same nanoseconds over and over again . The gigantic computer was left inactive and sealed off by the time loop until the Quantum Archangel crisis , when the Archangel , a potent entity capable of time manipulation , broke the time loop and enslaved the Mad Mind for its personal computational system , enabling her to calculate the trillions of necessary possibilities to grant everyone and everything in the Universe a perfect life . However , Kronos and the Sixth Doctor took out the Mad Mind by forcing it to focus its power and attacking the back door programme the Constructors never used , causing an epileptic seizure in the vast computer . Robbed of Bophemeral ' s power , the Quantum Archangel was soon defeated . ( PROSE : " The Quantum Archangel " )