Like what you think is better. Any suggestions and comments, put it here. Thanks!
I think you should use Ella. she is SEVERELY underated, and acts like a two-star mini-Charlie. anything with six or less damage gets reduced to two damage, and I find that people forget all about her until it's much too late. If you sub in Ella, you can get charlie's (ish) ability, and can keep Tsubame in.