Ok, have a few questions concerning Punch rollin' and such.

1. Say that you roll using the 3 variant ticket. Then you roll again on the same item using a 1 star ticket. Does this allow you to change one of your variant while keeping the other two the same?

2. Can someone direct me to a link concerning variants that no longer are obtainable through variant rolls? (such as no longer being able to get curse resist on a shield)

Thanks to everyone in advance.