i think sans has 2-B tier via soul hax
one time flowey says "He would probably invite his garbage brother, you know smiley trashbag, ...say if i have ONE piece of advice for you...DON'T. let his brother. find out ANYTHING about you, he'll....well...let's just say....he's caused me more than my fair share of resets, stay away from that guy." So sans has fought flowey maybe multiple times.
What do you all think about this?<ac_metadata title="Sans Revision" related_topics="Undertale|Sans|Flowey"> </ac_metadata>