Between classes... waiting for food... don't wanna do work... so I'm cranking out a meme after it's gone out of style.
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A) What is your pre-battle speech?
"You're fucked.

((Pause to allow heroes a moment to contemplate this. They are given the option to run away at this point. If they choose not to, next comes a long, drawn out speech about how incredible I am. The speech is accompanied by a choir, an orchestra, and a heavy metal band playing in the background to accentuate everything I say. The heroes listen intently, enraptured by the radiance of the true ruler of existence. At the end of the speech the heroes are again given the option to run away, or fall down on their knees and pledge undying fealty, love, and devotion to me as opposed to fighting)).

Run - "Yeah... that's what I thought. SOMEBODY BRING ME A SANDWICH!" I sit back down on my throne.

Kneel - "There is wisdom in your decision. Welcome to the winning team. Now... your God wants his hooves polished, his dick sucked, and a pumpkin pie." ('Tis the season)

Fight - "I don't believe you're grasping just how truly fucked you are. Allow me to show you..."


B) Where does the battle take place?
A grand, and elaborate palace constructed for me, the King and God of the world.

C) What is the battle theme song
Upon witnessing the sheer, blinding awesomeness of their Lord and Master ready to do battle the musicians in the choir, orchestra, and heavy metal band are struck with an orgasmic burst of musical inspiration the likes of which has never before occurred in the history of mankind, save for the very moment when music was first created by a cognizant homosapien. They are all one, connected through their music, and the glory that is Megido. And they play. They play a song that stabs at the hearts of all creatures within a 5 mile radius of the palace grounds with a nigh unbearable mixture of love, and fear. Most can not help but stop what they're doing, and stare towards the palace as tears stream from their eyes. Those of a weaker constitution fall to the ground, wailing and sobbing uncontrollably, overwhelmed by their adoration for me, and equally with the shame of their inadequacy. The first few minutes of the battle consists of the heroes fighting desperately not to be consumed by the most epic piece of music ever played.

D) Wining Quote
Winning - "I told you I'd shoot... but you didn't believe me! WHY DIDN'T YOU BELIEVE ME!?"
Just kidding. After I win I pee on the heroes I don't care for, and fuck the ones who entice me while the others watch. It's good fun. As I sit back down on my throne a group of servants rush to clean my junk.
"Sandwich, please.", is all I say. I then have all the heroes crippled, brainwashed, and pressed into slavery. =D They're violated by my most grotesque, and cruel servants at regular intervals until they eventually die from the trauma.

Losing
Assuming I have a set amount of HP, once it drops to 0 I judo chop every hero in the party for max damage, the game resets for good measure. The title screen then reads, "Suck it, bitch", instead of the actual title of the game. I'm Megido for fuck's sake. I don't lose.

E) How did it come to this?
Inevitability