every monster is to be found in via infinito except 2.
So it's possible to oversoul every single monster in via infinito, does this also count for the 5 bosses? I mean do you only have one chance to oversoul these or do they come back as random encounters in the deeper cloisters after you finished them off the first time? Does this count for Chac and PAragon, do these superbosses also come back or do you have to oversoul them the first time you fight them.

can anyone give me a list (if there is any) of monsters that can be oversouled and where you only have one chance to do so

thnx