Originally Posted by
kyc992
If you have Cybele U in your main team, she already has a B frame 20% atk/def debuff which frees up your EX. Black Propaganda prolongs the time it takes for boss to fill up overdrive by one, effectively giving you an extra turn to prepare for defensive cooldowns for the nuke, or buff yourself for a full burst to kill before you get killed.
As for why it feels the mass of defense is keeping you alive, it's actually because you are at around 50~60% assault. Reach 100% assault and you should be getting around a 33% or so damage boost, which is amplified through debuffs. After you reach the 100% mark, if you are willing to do so getting yourself a 2-3k attack rating boost by changing up your eidolon grid should give you around a total of 40~50% increase in performance. That should allow you to shorten fights by roughly 1/3 of the time... killing mobs faster translates into less overall damage taken.
Rough example with random numbers...
2 turns to kill first mob
3 more turns to kill second mob
3 more turns to kill second mob
First mob attacks once, second mob four times, third mob seven times. Let's say they hit 1000 each, that's 12k damage.
By killing faster...
1 turn to kill first mob
2 turn to kill second mob
2 turn to kill third mob
First mob doesn't attack, second mob attacks twice, third mob attacks four times. 6000 damage.
You sorta just cut the overall damage taken by half through killing faster with the imaginary scenario above.