[ Item ] Melee Attack Speed Item - Steel Tempest
It's melee only!
I forgot to put that in the picture D:
http://i.imgur.com/vNnrylV.png

Like Runaan's Hurricane the item would be somewhat situational. You can buy it as a Attack Speed source, if your build lacks it in the first place. Also, it is good if you are a 'Duelist' against another 'Duelist', or if the enemy team is highly attack speed based. I imagine these champions would like it:
As Attack Speed-based Duelists they would like it, if they are in a lane against another Duelist or if the enemy team is highly Attack Speed based. Maybe even if the enemy Marksman is fed, as a countering measure.
As 'Tanks' that are somewhat Attack Speed based and can make use of the item while reducing the damage enemy Light Fighters or Marksmen deal.
But it would be highly situational.
So, Opinions? :D
P.s. : Zephyr is called Zephyr even though it's an ability of Janna's.