Key Bindings would help me a lot... don't have to move fingers that much now lol
A nice add-on to wait for would be to set summoner abilities to champions so you don't forget what champion works with what ability. (I usually forget to change the summoner abilities a lot so it would help to have something that keeps memory of what abilities you used in the past :P (Don't really need to do it, just sayin it would help))
As for the nerf, really good that Rengar got nerfed since he was able to easily gank anyone he got near with the ult of his. Makes it impossible to avoid him once he makes a appearance (Ferocity bonus: Bollard Strike which stops the unit in place and then a couple of Savageries to massively increase attack speed.)
Surprise me on the next update because I don't wana know until its up lol (most likely just not gonna look unless its huge)