I reject my Ponity Twilight!!
 
part 2: Trixie becomes alicorn using Twilight body and her own head
 
part 3: the amulet can be amplified using the red gem and celestia sun ceremony power to pierce Trixie head and become the perfect life form

Best villain + best pony = make it happen

@SemiJuggao  
Someone MUST make a fanfic based off of this!!!

Damn, I made a typo by mentioning the rivals part twice.

Two characters who are polar opposites and become rivals… CHECK
 
Protagonist and antagonist are established as rivals… CHECK
 
Suspicious, evil artifact… CHECK
 
Protagonist possesses a wealth of untapped power and potential, while antagonist uses aforementioned suspicious, evil artifact to enhance their own power… CHECK
 
Protagonist gets training from a strange, yet wise and powerful mentor… CHECK
 
Creepy oriental merchant deals in suspicious wares and doesn’t ask questions about what they’re used for… CHECK
 
Magic Duel HAS to be loosely based on JoJo part one, Phantom Blood, because this is too big of a coincidence.

“What’s six-letter word for… total bitch?”  
(barging in) “TRIXIIIEEEEE!!!!”  
“Hey, that works!”