Introduce yourself (in great detail).
I am the Talon of Swift Death. I serve She Who Must Be Obeyed, and through her, Those Who Slumber.
You need more?
Well, let me tell you this: life is about choices and its consequences. The weak blame others for bad choices, the strong learn and move on without worrying about blame.
When you find your calling, you follow it. You face the consequences, you are wronged, and you seek vengeance. But after vengeance, what is left but the ashes?
My Liege showed me the answer, and now I have a purpose that will not fade, no matter what.
You look distressed. I can help...
...and show you why I am named thus. Scream if you wish, fight if you want, but it will just make the passage harder for you.
His essence was vaguely dissatisfying, and his soul was not strong enough to linger in the underworld, but perhaps his next incarnation would be wiser.