Make dusk blade vision passive an active

The vision denial aspect of dusk blade feels so bad. There are so many situations where it will activate when you don't it need or want it to.

Want to clear a ward? Don't worry even though you know where it is already and would rather hit it 3-4 times than use a sweeper like effect just to hit it once I'm going activate whether you want me to or not.

Activates but because the ward is on the other side of a wall you can't clear it or even know exactly where it is for sure.

Someone wards near you but you don't want to get closer to said person to clear the ward.

Oh well.

The vision denial part of dusk blade is a unreliable gimmick instead of a useful tool.