[Help] MP shop help

With the recent news of D. Athena and the hype, I was wondering if I should buy her. Then I thought back to the time I bought two Xiang Meis and decided it's best to ask for help. Should I buy D. Athena or invest my mp into other monsters. Thank you!

Current Teams: Shiva Drag, Ilm, Lightning, (Revo Kush) Box: https://imgur.com/a/1LJcz