This Suggestion is would honestly put rage blade on the map as for right now its a pretty niche item for 3-6 champs and among them only ONE can consider this a core item
The new Guinsoo's Rageblade
+45 ability power +35 attack damage
Unique Passive: On cast or hit, you gain +6 ability power, +4% attack speed and +1.25% movement speed for 5 seconds (maximum 8 stacks).
Cost: 2,235g (400g)
Sell Value: 1,565g
Item Code: 3124
My Reasoning behind the movement speed. With a movement speed buff it would be easier to move a target without losing the stacks. It also provides the utility that ALL hybrid Items should have with there only being REAL hybrid items ap+ad (Gunblade, Triforce, and Rageblade) Rage blade is the only one that is lacking utility and that is something that Rage blade needs.
Secondly if you are enraged at an opponent your adrenaline will be pumping and you will be running faster then you normally do. So movement Speed will put th RAGE in the RAGEBLADE.
I know that Rageblade is cost efficient damage wise but it doesnt provide enough force to make you a real threat