I saw this and just couldn't help myself. I got this idea when I thought of all the stereotyped villains that leave some kind of message, a taunt, a haunting phrase, and I thought "Huh? How does the guy who represents pure, I diluted evil not have one?" So here's my attempt.
A Parting Message
Summary: What if, as He Doctor destroyed the vase, The Beast told him something? What would it say?
XxxxX
A man stood before a shatter vase, within a pit of darkness and fire, with a triumphant smile.
"This is your freedom! Free to die! And I'm-" He froze and suddenly his feeling of triumph died, all he felt was fear.
Choking grasping suffocating fear. He suddenly became aware of the silence in the pit, the lack of clambering chains and bestial roars and when he looked closer that fear become terror.
Molten eyes of cruelty and sadism were focused entirely on him and the marred flesh around its mouth was curved upwards ever so slightly. The gargantuan creature stood tall, curled horns raking the caverns ceiling, with its arms hanging limply, seemingly unaffected by their situation.
"How pathetic, Time Child." It growled out with a visible steam in its maw. The Ninth Incarnation of The Doctor shuddered in revulsion at the sent of blood and fire. "You think you have won? That what you do will stop me?" It snarl of fury shook the cavern, and The Doctor backpedaled. "I am the darkness, and the sin, and the unholy fire of creation! I am the greed, and the lust, and the wrath in the feeble hearts of men! I am eternal as hatred, and rage, and fear! This body means nothing! A mere vessel, a manifestation of my power! Another will come and take its place!"
"I shall never fade! I shall be when all life has faded to dust, and that dust to to nothing! Because even the Light casts a shadow!" The malicious light in his shined in the reflection
"EVEN LIGHT HAS DARKNESS!"
The Doctor had no words for this. He felt fear that everything that the Universe was, everything he knew it to be – Everything it had been, is and would ever be – he feared that by the mere presence of this one creature, all existence would riddled with the unholy blaze that is this things wrath, because it defied all sense of understanding. Yet he had nothing
This was evil that had turned the most innocent, harmless creatures, into the stuff of nightmares. With its presence alone, it had corrupted the entire universe like it was nothing. How could anything, no matter how terrifying, have that level of power when bound?
The Beast knew. And the Doctor hated it.
He'd lost belief that it was wrong and he was right.
He had nothing.