Devourer probably doesn't work safely

TL;DR Devourer abuse, remove it's interactions with items like and possibly lifesteal in general

The way Devourer "works" right now, is to effectively change a champion's damage output entirely or compliment it immensely.

Typically builds . This effectively gives him 80 + 15% ap magic damage per hit, plus the BoRK passive, PLUS his wuju style which will still likely be the main source of damage if his opponent has over 100 armor.

Also has a similar use of the item with which is even stronger due to the fact that she actually builds AP.

Effectively mirror yi's use of Devourer.

So the question is; "What am I getting at?" All of these afore mentioned champions can use the attack speed and extra on-hit damage from devourer. Furthermore, the synergy between Kayle's Righteous Fury, Jax' Empower, Xin Zhao's Three Talon Strike, Shyvana's Twin-bite / ultimate re-cooperation, Warwick's Passive heal, and Finally Yi's Wuju Style. As much as I hate to say it, I'm fine with this interaction. I just believe that the interaction between Devourer and the on-hit damage from items is just too much.

Devourer has been too strong for too long, and it's caused several serious repercussions through league. I propose we take away the interaction with Items and their passives/actives and see how it goes over. It's a small step and I think it could really benefit the game's balance, by preventing champions from abusing it immensely.

(Yes, this means we could buff shyvana back a bit to make up for the most recent nerfs.)

TL;DR Devourer abuse, remove it's interactions with items like and possibly lifesteal in general