Devourer is needed, Sated Devourer isn't.
I'd be perfectly happy playing Ww, Xin, Udyr, etc. With Devourer without stated, as long as they made it cap out at 65+ Magic damage on hit. And made it slightly easier to get stacks, thats still quite a lot less damage, then Stated provides, but those champions don't need that damage there bruisers , they don't need the Huge Dps/Burst, Adc's have.
and
were the main abusers of it just like with feral flare.
.
,
,
ect. Warrior is better. If you build these items over Devourer you actually get to have an early game.