Also, I really can't blame you for not reading the notes. A lot of times it's just poorly translated so it leads to more confusion.
From the same notes:
NovemberUpdateNotes said:
When entering the content with a Venus Orb or Mars Orb, the final treasure chest will undergo the following change, except in the case of mimics.
Venus Orb: Increases the chances of receiving a rainbow chest.
Mars Orb: There is a chance the chest will remain a wooden chest.
Venus Orb: Increases the chances of receiving a rainbow chest.
Mars Orb: There is a chance the chest will remain a wooden chest.
"Final chest" is a headfake to the terminal chest, so initially one might think that's what they mean. It's not until the end when you read "remain a wooden chest" that you realize they are probably indicating the 9th chest event. I think they have people who could translate this in a way we could better understand, but they enjoy *** with us.

