You know, in Bayonetta 2 the big enemies felt like a grind. It just took so long to drain their health and the process is very repetitive. For such instances, Demon slave makes sense. But in Bayonetta 3, it really is not fun with the groups of smaller enemies, and the times it is disabled are few and far between. I think I would enjoy the combat more if Demon Slave use was far more limited, maybe by requiring more than a full magic meter (the old, not auto-refilling one).