What are some lesser known strats to go the extra mile on this boss?
Currently I'm doing HoldBreath with Kris on round 1 and S-Action with susie round 1 (to have rude buster as the first option lol) and I just defend with Ralsei. Then I will mostly Defend with Kris and Ralsei until I need to use healing items while I spam Rude Buster with the timed button press for some extra damage. I think I've gotten his health to about 70% of what is needed but only like once or twice. I struggle the most with the 2nd sword move where you sorta have to go in a big circle and the set of fat shards that you have to weave in between especially during the second version where they swap you in between horizontal and vertical as you sometimes are positioned against the wall.