Starlight Glimmer

Starlight Glimmer is a Hero,formerly villian, from the My Little Pony:Friendship is Magic Series.She is Twilight Sparkle's pupil as of season 6.

History
When Starlight was a filly,she had only one friend in the school she was in who's name was sunburst. However, over time, Sunburst's magical capabilities became so apparent he was taken away to canterlot to receive training under celestia,which made Starlight depressed,later furious. Over the years, she was under the belief that life would be better without cutie marks due to sunburst taken away.After Twilight Sparkle and the rest of the mane 6 ruined her planned utopia, Starlight invaded the castle of friendship and dueled twilight until she finally caved in and joined her as her pupil.

Fanon wiki ideas so far
Starlight Glimmer vs Sunset Shimmer

Abilities
Time manipulation (Top tier)

space manipulation (top tier)

Transmutation

Teleportation

self-levitation

projectile blasts

forcefields

freezing

take away powers

duplication

mind control

enhanced speed

likely far more (Twilight Sparkle herself stated Starlight was stronger than her in terms of magic power)