Can someone explain to me what exactly are the diminishing returns for having damage above 150%? Because quite frankly it is annoying for a PvE player to see a damage cap.
The concept is that as your damage amount increases above 150, each individual point of damage boost is less effective. 200% is the "cap" in that your damage will approach but never reach that number. If your damage is below 150, you will see no change whatsoever.