You can block high and medium attack while standing, and press down on the D-Pad to crouch and block low attacks.
Guard (ガード Gādo) refers to the defense system in the Tekken games. Hold the back button to guard; This is known as standing guard. Holding back and diagonally down leads to a crouch guard. The player will also wake up when standing still; This is called a neutral guard.
Executing a block is very easy in Tekken 7. As with the other entries in the series, all you have to do to block is pull back the movement stick or d-pad when an attack is about to connect to your character. Blocking from a standing position deflects high attacks but still leaves you open to low attacks.
Blocking while crouching protects you from low attacks. To block while crouching, simply hold or move backward while crouching. Blocking doesn’t always work, so it’s best not to rely on it too much. Some attacks are too strong to be blocked all the time, and others just aren’t blockable.
Since the Tekken Tag Tournament, Low Parry has become a common technique available to all characters. It is performed simply by pressing d/f in conjunction with an incoming Low or Special Mid.
This allows you to break off and escape from grapples before being thrown and losing some of your precious health bar. Just be quick! Escaping throws is very, very easy this time. You can perform a throw escape by simply pressing square and X together or triangle and circle.