Plot musing

I know this one's been visited by someone in some form or another by I thought I would toss it out there since it's on my mind anyway: Highlander via ponies, IE: Immortals who gain power from defeating other Immortals.
Princesses Celestia and Luna are the two oldest and most powerful still alive, Celestia banishes her to the moon not only too save the kingdom but to spare her life until a time when more alacorn immortals would appear. Cadence and Twilight ascend, and alacorn immortals begin to appear when seemingly normal ponies die and awaken as alacorns.
Soon the battle to be the One begins again and our heroines are left with the uneasy knowledge that if they all last until the end, they will have to choose between Friendship and the Quickening.

I took a moment to tweak the lyrics to Queen's Princes of the Universe,
'Princesses of the Universe'
Here we are, born to be queens
We're the princesses of the universe
Here we belong, fighting to survive
In a world with the darkest powers
Hah
And here we are, we're the princesses of the universe
Here we belong, fighting for survival
We've come to be the rulers of you all

I am immortal, I have inside me blood of queens, yeah, yeah
I have no rival, no mare can be my equal
Take me to the future of you all

Born to be queens, princesses of the universe
Fighting and free
Got your world in my hand
I'm here for your love and I'll make my stand
We were born to be princesses of the universe

No mare could understand
My power is in my own horn
Ooh, ooh, ooh, ooh, ponies talk about you
Ponies say you've had your day
I'm a mare that will go far
Fly the moon and reach for the stars
With my sword and head held high
Got to pass the test first time, yeah
I know that ponies talk about me, I hear it every day
But I can prove them wrong 'cause I'm right first time
Yeah, yeah
Alright, let's go, let's go, ha ha
Yeah, watch this mare fly, wooh
Bring on the girls, c'mon, c'mon, c'mon
Here we are (here we are)
Born to be queen, we're the princesses of the universe
Here we belong
Born to be queens, princesses of the universe
Fighting and free, got your world in my hand
I'm here for your love and I'll make my stand
We were born to be princesses of the universe (universe, universe, universe)

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Songwriter: Freddie Mercury (Tweaking a few words does not make it mine. )

Princes Of The Universe lyrics © EMI Music Publishing, Sony/ATV Music Publishing LLC (absolutely not mine)

Princesses of the Universe PMV by Random Defence (See, someone got there long before I did. )

https://youtu.be/opCM9Lcevug