Six ponies are currently chasing one down a dead-end alleyway. That one pony is dressed in a dark blue, full-body outfit, with it's face mostly covered. And of what little of this pony's face you can see, it's covered in dark blue makeup, effectively masking it's identity completely.
This one pony is known as The Gambler, after their dangerous heists, which were a gamble, on their part.
The six ponies currently chasing The Gambler, leading them into a trap, are not the Elements of Harmony, as I know you were expecting. No, these six ponies are a specialized team, created by the diarchy to capture The Gambler. They are known as Back-Biters.
The Gambler has run to the end of the alleyway. They are trapped, and they know this. They only have one trick left unemployed, and it's a gamble.
So, they throw down a smoke bomb, throw down an incendiary bomb, and buck the wall behind them, destroying it. As they turn to make their escape, a hoof grasps their hood, and pulls back.
It was Applejack.
And she bucked the Back-Biters out of existence.