More interested in a list where you think you couldn't win the fight without 2 absorb armors. Again, for me it was only mother brain. i havent touched omen yet though.
I can assure you all fights before Black Omen can be won using only buyable EQ that has no special properties... if you powerlevel. Though all fights are designed to be possible without significant powerleveling, and elemental armor plays an important role there at some points.