5.13 is going to break the game.
Let's just review how many champions are going to be getting massive buffs next patch due to Sated Devourer or the AP item changes (and some champs fall under multiple categories):
-Sated Devourer:
-Archangel's:
RoA:
Nashor's:
Rab's:
Rylai's:
Liandry's:
WotA:

I'm sure this patch is going to be very balanced and there are certainly no preemptive nerfs that could be made here. But good thing they nerfed the real god-tier champ, AP Xin, right? :P