Lucidstuck II

Wait, maybe we shouldn't kill them if we want Lucia to be able to use their powers when this is over...

That isn't his health bar, it's his defiance meter. We beat the shit out of him, he stops defying us because only the Maid could be this strong.

The point is we don't know his health bar. If he's at 2/3rds HP from that or even some amount more, combining all three attacks is probably going to completely one-shot him, thus destroying Lucia's ability to use this out in the rest of the dream.