Quinn's W (Heightened Senses) ability mini rework. (Concept)

As a dedicated Quinn main, I have always found the W unappealing and boring. This doesn't mean others don't like this ability, but I don't see many uses for this ability. So I took some time and thought about some ideas to make it a lot better, also I reduced the cooldown time by a lot. It almost takes a minute to reuse, and many Quinn mains don't max W first, I mean, I have wards for a reason Riot. Its just an idea, I like Quinn as is. However, I want her W chanced. It has an unreasonable long cooldown, it gives so little, and I really can't use it for my team.

(W) Heightened Senses - Active: Quinn signals Valor to scan a target area for 5 - 10 seconds. Using Blinding Assult will deactivate the vision. [What I tried, was to create a long-range vision ability. To balance it out, I limited the vision for your allies, but you get the best benefit.]

Range: 2500 Ally Vision Radius: 600 - 850 Quinns Vision Radius: 1100 - 1350 (W Passive Range) Valors Sight: 850 [I didn't want Quinn's (W) passives to be over effective, so I limited them by decreasing the range.]

(W) Assassination - Passive: If Quinn used Vault in Valors Sight, next attack towards enemy champion will be dealt double damage. [I think, Quinn is an assassin so I gave her some extra burst.]

(W) Pin Down - Passive: If Quinn used Binding Assult in Valors Sight and hit an enemy, Quinn's attack speed is increased by 80 - 160%. [She already had an attack speed increase, but I think this would lead to some fun plays.]

(W) Hunter's Security - Passive: If Quinn is in Valors Sight, Quinn's movement speed is increased by 10 - 20%. [A lot longer MS increase.]

(W) Counter Attack - Passive: If Quinn is in Valors Sight and she is attacked, Quinn will try to dodge the next incoming attack, taking reduced damage. Valor swoops down dealing physical damage to the attacking enemy, applying fear, and a 25% slow for 1.5 seconds. Marking them vulnerable. [To make outplays, and this would fit Quinn quite well. I got the idea from her lore when she kills the assassin.]

Damage reduction: 10% - 35% Valor Damage: 20 - 60 (+ 20% AD) Cooldown: 30 seconds. Mana: 60 - 80

(W) Sound effects: Valor can be heard flying around the target area if the enemy is within 800 units.

(W) Side Effect: This ability is disabled during Behind Enemy Lines.

So what do you guys think? Do you think Quinn's W is good as is, or would you like the change? If no, do you think the changes, I suggested, are good?

Thank you so much for reading, if you found any Grammar errors you can inform me. I want to learn from my mistakes and get better.