In the DKS -- in the series of duels in the hall of echoes the fight with Laiken and Razakel appears almost impossible to complete.
Each of them launches a magic attack that does over 1000 damage, so if you get hit once that is the end of the fight. Just to compare I turned the difficultly down to the easiest level, and it still is over 500 damage per hit.
Is this intentional or is this a bug?