Useless and Discarded

During his hunt after Rhinedottir, Scaramouche stormed her hideout - but instead of finding the master herself, he instead found a half-frozen prisoner, left behind during Rhinedottir's escape. Taking them in should've led to an interrogation and new leads. But the prisoner says they've been discarded. A failed creation. Useless. Scaramouche knows these words. / 2.3 spoilers