Image imported from derpibooru 
Original Description:
 
No. 16  
Blackjack was a dweller in Stable 99, an underground structure near Hoofington aimed at preserving the pony race. When her home was attacked by cyborg ‘Deus’, she volunteered to bring the enchanted software ‘EC-1101’ with her to the outside world to draw her enemies away. Little did she know, there were great secrets hidden in that software.  
In game, Blackjack is a fighter who has the ability to ‘spare’ her enemies and redirect her damage.