So this is just a idea of all my upcoming stories will now face. Enjoy its Origin story!
In an alternate universe, where the 8th Doctor was resurrected by the sisters of Karin while he was crashing towards a planet. He was then offered a choice to which would suit him more. He didn't want to, but eventually, he chose warrior, to only escape his doomed fate. But as he drank it, the evil that was inside him began to grow and started to dominate his body. Pain, anger, sorrow, loneliness, hatred, were all but some of the emotions the Doctor faced during his 7 lives. Unknown to him, that he would be consumed by his hatred for his enemies. The sisters of Karin accidently switched from a warrior to a power-hungry, but yet dangerous warrior. They wanted what was best to end the last great time war. His good side was being dominated by the error of time and space, and was fully succumbed to the hatred. Clearly, he wasn't the Doctor anymore, He was a monster, with a goal to destroy the whole universe, and then, time and space itself. But he'll need help to accomplish his goals, and he know's just where to start….
So see you soon!