How would you *fix* battle content?

[Uzephi]

Instead of developing for hardcore first and dialing back or removing mechanics, maybe try a midcore approach and increase/decrease as needed. The reason midcore and casual is so boring is because the fight wasn't designed for that slower pace and forgiving play style.

Edit: instead of adding 9 billion damage as a 'mechanic' that must be followed, adding any of the plethora of debuffs you have in the game could work. When was the last time the debuff Misery was used in the game, or Disease in a raid/AR? You have the tech right there to give us more engaging content than 'avoid bad.'