Just remove devourer, it has caused nothing good
From On-Hit abuse to Tank abuse it has caused many champions to become broken and nerfed because of it.
The concept is a very interesting one, farm a lot and get rewarded for it, however both the way of earning it and the reward are very toxic.
AFK farm and risk your team losing lanes for 25 minutes, and then become the biggest on hit abuser afterwards, this has not been healthy for the game.
We've had Kindred getting it nerfed because ranged champions abused it
We've had tanks and bruisers who do more damage than the actual carries with it like Shyvana
We've had squishes be able to build tanky because of it and rage blade
And some games have been lost because some junglers are very dependant on it and useless without it.
DFG was removed because it was deemed unhealthy by Riot and they buffed the champions that were highly reliant on it so why can't it be the same if they remove Devourer?
Warrior also needs some love because most champions who used it now use sated or something else