Sutekh, The Doctor and others in “Empire of Death”

Sutekh

[gripping the TARDIS] We meet again, my old friend.

Don't you dare...!

Doctor, what is that thing?

Sutekh. The Death of Ages. The Typhonian Beast. The greatest monster I have ever fought. [sees scenes from their previous encounter on his monitor] The time window has my memories too.

It's your life, Doctor. It's telling the story of your life.

A long time ago, in the England of 1911, Sutekh had been bound and imprisoned for all eternity, but he rose again, and I defeated him. I cast you into the Time Vortex, I sent you forward to your own death!

Sutekh

Instead, I found a home. I clung to your infernal machine, and for so many years, I hid. I have travelled with you for all this time, riding the spine of your ship, staring into eternity and evolving into my true godhood. Now I know every beat of the heart of your time machine, and I can bend it to my will. It will stand as my altar. The temple of my empire of death. Never yours again, Doctor, never. And I saw, inside the TARDIS, so many secrets. Her name.

Susan.

Sutekh

The perfect trap. I created an apparition of her universally. Every time we landed, on every single world, I birthed them all. My angels of death, now standing triumphant across the universe. Every living thing is an abomination. I am come to release them into blessed death - and I find that good.

Then I damn you, Sutekh! I damn you in the name of life itself! And I swear to you, with both the hearts of the last of the Time Lords, I will stop you! I will defeat you! And I will turn back death! And why... am I still alive? Killing me is your gift. And believe me, Sutekh, I'm an extinction event. So what is stopping you? Why is the god of death not killing me? What am I missing? I'll tell you a secret, Sutes. This feeling that you have now, this doubt... have you ever felt so alive? And doesn't it feel good?