When Dazzling Display is used on a target, it inflicts the Shaken condition for a number of rounds depending on how high the demoralizer rolls above the target's DC. Following the Demoralize rules, it makes sense that if Dazzling Display is used on the same target again, it would suffer additional rounds of Shaken, extending the duration of the effect.
But what happens on that 2nd Dazzling Display if the demoralizer has the Disheartening Display feat?
Are any additional rounds of shaken that would have normally been caused by the 2nd Dazzling Display ignored in favor of just upgrading the fear effects the target already had?
Or are the previous rounds of shaken upgraded to frightened, then the new rounds of Shaken added on after the upgraded old effects?
Or does the 2nd Dazzling Display increase the duration of Shaken from the 1st, then the Dishearten effect upgrade all those rounds to Frightened?
We've got 2 players that are planning to use Demoralize, so I'm trying to make a google sheet for our GM that will make calculating and tracking all these fear effects easier, but I need to know exactly how they work before I can make the sheet accurate.
Demoralize:
"If you are successful, the target is shaken for one round. This duration increases by 1 round for every 5 by which you beat the DC. You can only threaten an opponent this way if it is within 30 feet and can clearly see and hear you. Using demoralize on the same creature only extends the duration; it does not create a stronger fear condition."
Dazzling Display:
"While wielding the weapon in which you have Weapon Focus, you can perform a bewildering show of prowess as a full-round action. Make an Intimidate check to demoralize all foes within 30 feet who can see your display."
Disheartening Display:
"When you successfully use Dazzling Display against any shaken, frightened, or panicked opponents, their fear increases by one step. An already panicked creature demoralized by this feat cowers. Once affected by this feat, a creature cannot be affected by it again (by you or anyone else) for 24 hours."