This is how Thunderwing attacks goes in Princess Twilight Sparkle.
Thunderwing: Princess Twilight Sparkle, fourth Alicorn princess! [lands and furls his wings] Your destruction is at hands!
Twilight Sparkle: What are you?!
[Thunderwing goes to crush her but she jumps out of the way]
Thunderwing: I am the instrument of Unicron's wrath!
Thunderwing: You are strong, Twilight Sparkle, but only your hatred will give you the power to save your friends. Give in to the dark side.
[Twilight looks shocked]
Twilight Sparkle: I would never do that.
Thunderwing: You will. Sometime. We all have a dark side.
Twilight Sparkle: Well not me.
Thunderwing: Why defend these weaklings? You could've ruled by my side.
[Thunderwing uses his powers to control Twilight]
Thunderwing: Twilight, destroy the Princess of the Sun. I command you!
[Twilight's eyes turn into King Sombra's eyes and she prepares her Dark Magic]
Princess Celestia: Twilight! Fight against it! Break free!
[Twilight listens to Celestia and fights Thunderwing's control]
Thunderwing: What are you doing?!
Princess Celestia: She's resisting your control. You cannot force her back into it again.
[Twilight's eyes return to normal and she readies her magic, aiming it at Thundewing]
Thunderwing: You cannot defeat me, Princess. I have transcended physical being. By my will alone, all upon this world shall fall into true chaos.
Twilight Sparkle: Not while I still exist, Thunderwing. The Magic of the Alicorn will light our darkest hour.
[Twilight shoots a powerful beam of magic at him]
[Thunderwing falls to the ground, defeated]
[Twilight walks up to the defeated Thunderwing]
Thunderwing: You were destined to destroy me. Do it. Give in to your hatred.
[Twilight prepares to finish him when Princess Celestia lands behind her]
Princess Celestia: Twilight! Don't!
Twilight Sparkle: It's a trick. He's more powerful than you know and he deserves to die for what he's done.
Princess Celestia: Maybe so, but if you strike him down in anger, you'll be on the side of evil forever.
[Twilight gives in]
Twilight Sparkle: Fine.
Princess Celestia: [hugs her former student and then glares at Thunderwing] Play-time is over for you, Thunderwing.
Princess Luna: You're evil has gone on far enough.
Thunderwing: This is over when I say it's over!
Princess Celestia: Maybe so, but only when you win shall it be over.
Princess Luna: We Equines are stronger than you think.
Thunderwing: Equestria is ours to rule. Unicron, the true Lord of Chaos, shall rise again.