This is how Makuta turns Celestia evil goes in
[Celestia hears a noise]
Princess Celestia: Huh? What's that I'm hearing?
[A Skull Scorpio attacks]
Princess Celestia: AAAAAHHHHHH! A SKULL SCORPIO! GET AWAY!
[But it's too late. It starts spraying her with smoke]
Princess Celestia: I have to.... [coughs] save... [coughs] the Auto... [coughs] Bot... base...
[Celestia passes out]
[Minutes later, Celestia wakes up]
Princess Celestia: What happened? And why am I tied up?
[She sees the Autobots still unconscious]
Princess Celestia: Oh no! Makuta set me up!
Makuta: Yes. Thanks to my Dark Energon Terrorcons, they got you right where they want you.
[The Terrorcons hold Celestia in place]
Princess Celestia: Let me go, Makuta! You're corrupting the Autobot Base with Dark Energon!
Makuta: Seems I haven't given you enough information about my evil plan. You see, not only do I want to take control of the Autobot base, but I want to use it to make you my Dark Princess.
Princess Celestia: Dark Princess? You planned this?!
Makuta: Yes, Princess Celestia. Soon you will succumb to the energy of the Terrorcons!
Princess Celestia: What are you going to do to me?!
Makuta: You'll see.
[The transformation begins]
Princess Celestia: Please! Makuta! Let me go!
[The vines begin draining her magic]
Princess Celestia: Twilight! Help me!
[The vines close in on Celestia]
Princess Celestia: TWILIGHT!!
[The vines completely engulf her]
[There is a flash of bright light]
[When the light fades, Daybreaker appears]
Daybreaker: [laughing evilly] I can feel the dark energy flowing through me!
Makuta: It worked!
Daybreaker: When do we start? Ah, the Autobot Base. Mind if I use it for evil?
Makuta: It's all yours, my princess.
Daybreaker: That is splendid. Soon we will be unstoppable!
Makuta: You got that right.
Daybreaker: I have just enough power to make your brothers pay.
Makuta: This is going to be fun, Celestia...wait. I have another name for you. Since you are evil, I will call you Daymare Sun.
Daybreaker: Daymare Sun? How about DAYBREAKER!