More than buffs, a couple bug fixes (Uriel mostly).
Awakened Satan has always been better than Amon U, even tho in a year (or 10/11 months) Amon's debuff changes from A to C frame, that will make very good synergy between Satan and Amon.
Hercules' buff is that her first skill doesn't remove her buffs anymore, but sadly she's broken at the moment, given that his nuke doesn't hit as much as it should.