Big Devil 2 and Black Jack are two different cannabis varieties with different genetic characteristics and traits.

Big Devil 2 is an autoflowering strain, which means that it grows independently of the light cycle, and is a cross between Big Devil Auto and Ruderalis. This variety is known for its short flowering time and medium-sized plants. It tends to have a balanced effect that can be euphoric and slightly physically relaxing.

Black Jack is a hybrid variety that is a cross between two famous varieties, Jack Herer and Black Domina. This variety is known for its strong euphoria of the mind and physical relaxation. Black Jack plants are usually of medium height and have a medium flowering time.

Both of these varieties have their own characteristics and advantages. Big Devil 2 is suitable for those looking for fast growth with autoflowering abilities, while Black Jack offers strong euphoria of the mind and physical relaxation. Each of these varieties can appeal to different grower and user preferences. The cultivation of some cannabis varieties may be restricted by legislation.