Bro no matter how low your health goes you legit cannot die to toriel-
all you have to do is just nag her about going back home and she'll get up and go into the basement, follow her, and uh
yeah fight her.
this is the switch version idk what you're playing on it might be the same thing-
hmm yes
the sans fight is like a 10 minute battle
i believe the jevil fight is shorter
my idiot brain once thought both of them were super easy and had no understanding as to why everyone is dying to them