I'm not exactly sure if it's true, but according to my YAPE data, Advent Marisa should get either a Final Marisa or a Last Word Marisa from breeding. It could be very useful to save your Sun stones and Moon stones, if it's actually true!
もくてきの ために いろいろと
いわくかりた だけ だそうだ。
A thief who bustles around often for the sake of her goal. She herself says it's only "borrowing", though.