An added story to go with this.
Roy: Abacus… it’s over. Your plan to have the city as your kingdom has failed! Equestria City has united as one. It’s time for you to make amends. Amends towards the city but also the people! The same people that you’ve hurt in the name of your demented desires.
Abacus: Never! I will never concede, not even to you. You ruined everything! You’ve ruined it all, ever since you stepped foot in Crystal Prep! You became a blight to my vision, a blight towards my wish to make this city be under my rule.
Roy: If it’s about what happened, I didn’t have a choice. I never wanted to go to Crystal Prep but I felt I should do something that would bring respect back to that school.
Abacus: Respect!? What respect?! All you were was a tiresome annoyance! You never respected anyone! You cared more for yourself rather than helping that school!
Roy: Even so… it doesn’t excuse what sins you’ve done. Trust me I know. You are so fixated on perfection that you became… blind to every little thing that you had done.
Abacus: What difference would that make exactly?
Roy: The answer’s simple. You were blind then… and you are still blind now. It’s no wonder that your fall from grace was swift. Crystal Prep was in shambles, its reputation tarnished. No one would want to be there and everyone demanded that you take responsibility. You did and you resigned in shame. Any normal person would have accepted what they had done… but not you. You instead decided that the world had wronged you so you took it out on everyone! No wonder you ended up being head of E.C. Security.
Abacus: They all deserved to suffer Starfall! After all… It was a position that suited me perfectly and with it, I would have everything I ever wanted. In turn, I would ensure that order would forever be the way I wanted.
Roy: The old motto of the city, “survival of the fittest”. Is that what it is?
Abacus: Yes. Only the strong will survive in this city, my kingdom!
Roy: The strong huh? Like being a winner? I refuse to believe that. Back when I dueled you, I felt that I had to win because I had much to live for. I didn’t want to lose! But I eventually knew that losing was more important. You however don’t have that mindset. You couldn’t when I beat you and brought dueling back to Crystal Prep! You instead shun what happened and even now, you can’t accept it! (lets out a sigh)
Abacus: What is your point?
Roy: My point is simple. Everyone abandoned you because you couldn’t accept it… even your own daughter!
Abacus: How dare you Starfall… how dare you speak of my daughter! She was only a means to an end. Nothing more!
Roy: Wow… you really do surprise me. I pity you. I really do. I thought you were somebody that only wants what’s best for the city… but after this, forget it. Now I know what you stand for. You want what’s best for yourself at the cost of everyone around you. I, Roy Starfall, the Blossoming Stardust will put an end to this. Your end is coming Abacus Cinch… and I’m going to make sure you don’t abuse your power to harm anyone again! (Powers up his Duel Disk)
Abacus: You think you can stop me? I believe not. When I’m done with you, order in this city will be restored to how I desire it. I will bring it back and in turn, wipe away everyone who has taken it all away! (Abacus powers her duel disk)
Roy: Enough talk! Let’s do this!
Roy & Abacus: DUEL!