Uggh... After 35 hours of chasing me, finally you have defeated me. Truly, your skill is greater than I thought it was. As I lay here taking a long time to die, I am filled with regret...
That damned sorcerer Farnabulus has been controlling my mind, and making me perform acts of severe and unspeakable evil. If only I could have resisted...
Hold on--Farnabu-who now?
You know, Farnabulus. The real villain. Perhaps you've never heard of him, but you need to start hating him; you have about two more hours until the final battle.
I, Farnabulus, was already the most powerful sorcerer in the world, but that wasn't enough. The rage and greed in my soul transformed me into the creature you see before you, but it was worth it...
I finally found a way to collapse the space-time continuum so that I can be the ruler of all ages. Unfortunately, it will cause all life as we know it to blink out of existence, but I will be a GOD!
I would explain more, but the more I talk, the less it will make sense.
Ehh, your plan doesn't have to be plausible, as long as it sounds evil enough.