This is how Rainbooms vs. Midnight and Thunderwing goes in My Little Pony: Equestria Girls: Friendship Games.
[We see the Rainbooms, Sunset, and Human Flash Sentry facing Thunderwing and Midnight]
Flash Sentry (EG): The game is up, you two! Return Twilight to normal this instant!
Midnight: Or what?
Sunset Shimmer: [shows them Human Twilight's amulet] Or I'll use this.
[Midnight and Thunderwing laugh]
Midnight: Oh, I'm so scared. [laughs]
Thunderwing: You actually think a small device like that can defeat powerful beings like us? [laughs]
Sunset Shimmer: Yes.
[Midnight holds Rainbow Dash (EG), Pinkie Pie (EG), Rarity (EG), Applejack (EG), and Fluttershy (EG) in place with his magic while Thunderwing fires his wrist guns at them]
[Human Flash Sentry, now a Cybertronian, creates a shield which blocks the attack]
[Midnight and Sunset Shimmer face off]
Midnight: Sunset Shimmer.
Sunset Shimmer: Midnight.
Midnight: I've been looking forward to this, old friend.
Sunset Shimmer: [holds up Human Twilight's amulet] Not as much as I am looking forward to using this.
Midnight: You should've joined us when you had the chance, Sunset. Thunderwing helped me. I understood him. I saw the future. That is why I became his apprentice.
Sunset Shimmer: Well, the way I see the future you don't. Even with all that power, you and Thunderwing'll still be alone. I understand you, Midnight. And now, I want to show you and Thunderwing the most powerful magic of all.
[Sunset uses the amulet on herself and turns into Daydream Shimmer]
Daydream Shimmer: The magic of friendship.
[Midnight vocalizes causing red soundwaves to come out of his mouth but finds that they have no affect on Daydream]
Daydream Shimmer: Sing as much as you want. I won't fall no matter how hard you try.
[Midnight vocalizes causing red soundwaves to come out of his mouth even louder but it still has no affect]
Daydream Shimmer: [blasts him with magic]
Midnight: It is obvious that this contest can't be decided by our knowledge of defeating an enemy, but by our skills with magic.
[Midnight unfurls his wings and whistles. Midnight Sparkle appears]
Midnight Sparkle: Why, hello, Midnight.
Midnight: Midnight Sparkle.
Midnight Sparkle: Soon I will understand all magic.
Midnight: I know.
[Midnight Sparkle and Daydream Shimmer stare at each other]
Thunderwing: [to Midnight Sparkle] Yes! Kill her! Do it and you can take your rightful place at our side.
[Midnight is on his knees as Twilight walks over to him]
Midnight: You were destined to destroy me and Thunderwing. Do it. Give in to your hatred.
[Twilight prepares to when Sunset Shimmer touches her shoulder]
Sunset Shimmer: He's beaten. Let it go.
Twilight Sparkle (EG): It's a trick. He's more powerful than you know and he deserves to die for what he's done to me.
Sunset Shimmer: Maybe so, but if you strike him down in anger, you'll be turning our friendship into something he can feed on.
[Twilight eventually gives in]
Twilight Sparkle (EG): Fine.