Which is the most important skill for a great leader ?

Thinking outside the box.  Being able for your team members to come to you for help.

Leadership is wide subject that cannot be explained in one trait. However most leaders should have the following: Lead from the front.  2) Be Inspirational3) Be Critical.   4) Instil Confidence in your team.5) Build and Maintain Relationships.  6) Have the ability to move with the times

Communication and understanding.. To be able to communicate effectively with the employees.