Sorry for the huge delay. I'd like to say that I've been working on this since 2 days ago, but I haven't had the chance til now, so pretend this was done then. 
Does "As of becoming a Gold Rank Genre, Marrie has found that she's able to become one with the wind and turn incorporeal when casting Melodies. This comes with a 20 mana cost at the start of the casting." sound about right or need to be balanced more?