The problem isn't devourer...
Not sure this is true, but I just recently heard riot is nerfing devourer. If this is true I'd like to ask ya'll not to.
While I feel some offenders are abusing devourer, looking at you Yi and Xin, but I strongly feel devourer is the only reason certain champs like Shyvana are even viable at the moment and feel it would be sad if said champ gets pushed down to unviableness because Yi is abusing it. Not alot of people actually know this, but Yi can actually go warrior and do EXACLY the same thing he does now, on the contrary I fear Warrior Yi far more than devourer Yi, because the flat AD and no need to farm stacks means he will be steamrolling far earlier, unlike with devourer his skills actually hit alot harder with warrior, that's 60 AD he's missing out on and tons of farm time he's adding when chosing to go devourer, to reach that sated passive that HIS kit allows him to abuse.
Even Rageblade itself is ALOT stronger than devourer despite miniscule difference in prices, at least until sated.
Nerfing devourer won't change how Yi is played, all it will do is make people realise how strong he is with warrior and he will continue to steamroll because he has the true damage, tankyness and cheesy playmaking ability (cc? Hahaha! Alphastrike ur bunghole!) to do so.
So don't fix an item that isn't broken, fix the offenders instead.