Jenny
There were a million TARDISes in the sky at one point. Gallifrey burned. Deathsmiths of Goth, the Skaro Degradations, the Horde of Travesties, the Could've Been King and his Army of Meanwhiles and Neverweres and the Nightmare Child, they were all there. And it was hell.
They regenerated, Jenny. Over and over. They regenerated only to die over over and again. And the war, it ripped apart galaxies, destroyed planets. It could've destroyed the universe. It wasn't life. I destroyed them all. Everyone. Time Lord and Dalek.
That is why I don't like weapons, Jenny. I don't trust myself with them. That is why I was so reluctant to accept you. Because for a moment, you were just like them. My daughters and sons.