Image imported from derpibooru 
Original Description:
 
Twilight sparkle fron the king sombra future  
History:  
After she failed in her admissions exam, she received solace from her only friend, her brother Shining Armor, from that moment Twilight decided to follow in her hoofsteps and join the royal guard, eventually proved talented in battle magic and also proved to have a unique skill for military strategies thanks to this after her brother quickly became commander she progressed and became her right-hand mare.
 
Her skills and strategic ability were key during the changeling invasion, as without the commander-in-chief she had to take the reins of the royal guard, which earned her a promotion after her brother left for the crystal empire.
 
However after the fall of the Crystal empire to Sombra, she personally led a secret mission to rescue Princess Cadance and her brother, unfortunately this was a trap as her brother was already under Sombra’s control and Cadance had been petrified as a warning to Celestia, after being defeated and captured Sombra took control of her entire battalion but in attempting to take control of Twilight this was impossible… she had already lived all her fears which made him impossible to control by the fear power of Sombra, yet Sombra decided to snatch him further by breaking his horn and sending her back to instill fear among the remaining soldiers of Celestia  
Defeated and humiliated Twilight decided to leave the Royal Guard to find a way to defeat King Sombra on her own,nothing has been known of her from now