Talk:Xerath/@comment-4012115-20111003161211/@comment-69.141.8.150-20111004003342

the ability is a click/toggle, you toggle it on and after a few seconds it'll deactivate automatically but you can manually deactivate by clicking again at any time within the duration(like garen's judgement).

and you're misquoting phreak. He used that analogy in reference to whether or not Xerath's self-immob would make him immune to any enemy abilities that typically move a champion (ie poppy's charge or alistars headbutt).