Either Devourer needs to be nerfed or Yi does.
Why is Yi the only champ in the game who becomes unstoppable when he becomes sated? There are other champs that build it, but Yi is the only one who can wreck an entire game with it. And before you say "just pick cc," cc counters every champ in the game and none of them can go 30-5 as soon as they get sated.

is a bigger threat then Yi to be honest. At least Yi is squishy.