How about instead of flailing around with buffs that don't do anything for Jax and Akali-
-Riot just remakes Rageblade into an item that grants 25% hybrid penetration and shares named passive with Void/Whisper to keep them from stacking?
The reason hybrid damage champions are always stuck in a weird place is because they lack the tools to properly take advantage of their damage like running straight AD or AP does.
'But wait, Rebo! How are you supposed to build against hybrid penetration!'
Man, I know? If only there were items that granted equal protection against both physical and magic damage. Too bad there aren't any 
of 
those 
.
