Burd i suggest you change the stun to whatever you did with dragon trap knockdown, right now db sleep combo is absolute trash, i get the nerf and i agree with it but right now if you try to chain sleep combo with blinking moment chances are you will break the mark yourself, the mark won't stun if another stun is already on the target, timing it perfectly is near impossible for people with high ms (500 on a good day) change it to dragon trap stun, which can be avoided with anti stun buff or even forti but it doesn't stop the mark from stunning the target. Even if you time it right, if the target has better ms than you and they manage to hit you before the mark takes effect it will fail.