User blog comment:Witchking99/Judgement, Assassin of Justice REVISED/@comment-9417871-20130512194410

Hm... he seems a bit weird. I don't like how his mark system works. Maybe change his passive to

Judgement Beckons

(Passive): Any enemy champion near Judgement with less than 20% health will gain 1 Mark of Judgement for every 2 seconds they are near him. Each Mark of Judgement applies a 5% slow, stacking 5 times. The enemy is also revealed on the map while they have at least 1 Mark. Marks decay at a rate of 1 every second.

With that you can still have your other abilities still be Mark based, but it seems a bit better to me this way and contributes to his assassin style.