The osmund saddler boss fight is a tense, multi-phase encounter where the old knight uses his massive zweihander to control the arena's central platform, forcing you to manage both his sweep attacks and the spectral adds he summons from the side crypts. Dropping into a defensive stance when he plants his sword in the ground signals his most punishing charge, which you can parry to stagger him for a critical riposte. osmund saddler boss fight 4