Can we make Varus's W a little more dynamic?

I love playing , he's fun, lots of builds etc. But his W(PASSIVE: Varus's basic attacks deal bonus magic damage and apply Blighted Quiver Blight for 6 seconds, stacking up to 3 times. BONUS MAGIC DAMAGE: 10 / 14 / 18 / 22 / 26 (+ 25% AP) is so bland with so much potential in his kit. It has no scaling with how you build him, only in ap, which is fine but if so, it has to be alittle more dynamic. So what I was thinking, since his W needs to interact with his other skills, why not give them special properties. I'm thinking give incentives for different paths. I do E first alot for the ease of procs and that Q has a multiplier on AD so it can wait. But, this is what I'm thinking

For example, if you were to use Q to proc the Blight stacks, it would do increased damage on the blight proc. But, if you used your E to proc them it could create an amplifiied slow area/increase the slow amount. It would provide dynamic skill paths if youre in a tough lane, max E to help peel them off and even punish dives. If an aggressive lane, max q for more damage. Also, for his ult if you were to hit a 3 stack blight on it, it could instantly spread in a largher range. Having something like this would force Varus players to choose, if they want to wait and use their ult on a 3 stacked enemy to get alot of benefit, or use it without the increased effect for a solid engage and catch out, like it is now.

Can we get any Red's in here on this topic? Plus, I'd love to hear some ideas as well!