I'm trying to decide on whether to buy Charlie, Tsubame, Shaakarti, Dalhia, Aurora, or Lin Xia.
Buy the card which fits into the deck your currently using.
Aurora since you can use her on a Rescue deck. And more decent than the other cards you put.
Pick from either Aurora, dalhia or Tsubame the other 3 aren't as worth it imo.
Dahlia, Charlie or Lin Xia for unspeakable reasons