This is how Thunderwing vs. Twilight goes in My Little Pony: Equestria Girls.
Thunderwing: I, Thunderwing, have defeated Princess Twilight Sparkle!
Rainbow Dash (EG): Really? You think?
Pinkie Pie (EG): Yeah.
Rarity (EG): You'll never defeat her.
Applejack (EG): Yeah.
Fluttershy (EG): I agree.
Sunset Shimmer: We'll never bow to you.
[Twilight gets up]
[Thunderwing stands above the injured Twilight]
Thunderwing: If you won't be turned, you'll be destroyed.
[Thunderwing fires lightning at Twilight, causing her to fall in pain]
Thunderwing: Young fool. Only now at the end, do you understand.
[Thunderwing fires lightning at Twilight twice]
Thunderwing: Your Magic of Friendship is no match for the power of Dark Energon.
[Thunderwing fires lightning at Twilight, causing her to fall to the floor in pain]
Thunderwing: You have paid the price for your lack of vision.
[Thunderwing kicks Twilight into a wall]
Thunderwing: That is why this will be our final encounter.
Twilight Sparkle: After eons, I finally see the truth of your words, Thunderwing.
Thunderwing: And what might that be, Twilight?
Twilight Sparkle: That you haven't looked behind you yet.
[Thunderwing turns, a confused look on his face. Optimus, in truck mode, lands on Thunderwing from behind]
Thunderwing: Optimus Prime?
[Optimus transforms into bot mode and stands]
Optimus Prime: One shall stand, Thunderwing. And one shall fall.
Twilight Sparkle: And the one that shall fall is you.
Thunderwing: Not if you fall first.