Shadow Counter is a new mechanic introduced in Killer Instinct (Xbox One). For the cost of one bar of Shadow meter the defender can form a counter attack with the Shadow Counter. The Shadow Counter can counter Shadow Moves and block strings. It functions similar to Alpha Counter in the Street Fighter series.
How to Perform
To do a Shadow Counter, while in your character's blocking stance, you press both Middle Punch and Kick Buttons, putting you into the counter animation where the next hit you recieve will "catch" the opponent. When performed successfully, your character will strike back with a his/her shadow move. The stance of a Shadow Counter is the same stance as a Counter Breaker. All characters in Killer Instinct (Xbox One) have this.