Omnistone mini rework

I love omnistone because it is RNG and super quirky however it is just very blatantly bad. I know it came out only a day or two ago at this point so maybe we just "haven't unlocked it's true potential", but I have a thought that might make it an actually semi relevant keystone. Instead of getting a random keystone what if you chose one from each category and then it would cycle through those keystones so that you would mostly get relevant keystones for your champion while still keeping the RNG factor.

This mild change might help out the keystone but at the same time could definitely cause it to be unbalanced. It is just a thought on my end, do you as the reader of this post have any thoughts on this particular concept?

-SWP