Hi, When I try to duplicate the cursed dolls I always make normal ones. Is there a particular way to consistently duplicate the marked one? Any help to make this trick more consistent would be nice.

It works only in co-op mode.

I know it only works in co-op and for the non host. I just have issues doing the duplication to get the marked doll consistently.

we too don't fully understand how it works :D

It's more or less RNG, but I would recommend that once you have 2 grey dolls duped you start only using the grey ones to dupe and ignore the normal ones. With that you get only grey dolls.

I plan on making a video on it soon, It's finicky, but there's a decent way of going about it.