Note, this is here because it goes with the item changes, before anyone says anything about it.
I think an AP version of Hurricane will be cool to go with the Rageblade, Gunblade, and Nashor's Tooth that you can have with AP Marksmen (again I wanted AP marksmen forever ago and this is my most excited change this pre-season 6 thanks for the on-hit magic damage life steal that Gunblade gives, the spell vamp makes it slightly awkward on revolver until the item is completed, but that is whatever).
Here is the idea (when compared to Nashor's Tooth gold value is fine, the tooth gives CDR remember):
**Rabadon's Hurricane (Ranged Only):**
Recipe: Recurve Bow (1000g) + Needlessly Large Rod (1250g) + 150g = 2500g
+50% Attack Speed
+80 Ability Power
+UNIQUE Passive: Basic attacks deal 15 bonus magic damage on-hit
+UNIQUE Passive - Bolts: Basic attacks fire bolts to up to two nearby enemies around the target that deals (+50%base AD)(+20%bonus AD)(+10%AP) physical damage each bolt and apply on-hit effects in full.