In Series 12 of Doctor Who, when the Master finds out the Doctor is the timeless child he destroys gallifrey and wipes out all timelords on his own. Later on with the help of Ashad and the Cybermen he turns the corpses of the timelords into CyberMasters. Cybermen/Timelords that can regenerate. However even after all this it wasn't explained how the master, on his own, defeated and destroyed gallifrey when the Daleks In the Time War it took over 400 years to finally get somewhere.

In today's video we look at factors like Rassilon leaving, it being post time war and even theories to how the master destroyed gallifrey so easily. Was it weapons and artifacts like in the Deadily Assassin? today we explore those options