From my experience, as someone said before, if an attack has to connect with your character to inflict a status, a high leveled Dual Blade is pretty much immune. This goes for stun/seal/blind/tornado at Empress (can't think of others), but not potential lock or zombify, since those don't need to deal damage to you to afflict you.
Root Abyss bosses are weird, I can very rarely dodge Pierre's attacks (~2:25 in the video above), but no other boss that I recall. Stance seems to work similarly, Thorns has 90% stance but inside those bosses (Pierre especially, I only seem to notice it at him) it seems to work maybe 20% of the time... I think Flash Bang helps slightly with the chance of a boss missing you but I don't know for sure. Flash Bang should be -20% boss accuracy if it does work.
[MENTION=9114]tecul1[/MENTION]; add one of these ; to the end of the mention otherwise it won't work, only just saw this xD
edit:
Just noticed a miss at Von Bon and another at Queen, neither with Flash Bang active.
Root Abyss bosses are weird, I can very rarely dodge Pierre's attacks (~2:25 in the video above), but no other boss that I recall. Stance seems to work similarly, Thorns has 90% stance but inside those bosses (Pierre especially, I only seem to notice it at him) it seems to work maybe 20% of the time... I think Flash Bang helps slightly with the chance of a boss missing you but I don't know for sure. Flash Bang should be -20% boss accuracy if it does work.
[MENTION=9114]tecul1[/MENTION]; add one of these ; to the end of the mention otherwise it won't work, only just saw this xD
edit:
Just noticed a miss at Von Bon and another at Queen, neither with Flash Bang active.