Now for something completely weird, this is Uta Kata.

Uta Kata is an unconventional Magical Girl Series by the same creator of Kiddy Grade.
It's about Ichika Tachibana and her experiences over a summer break; it starts in an old school building where Ichika discovers a mysterious girl named Manatsu Kuroki inside a mirror who offers Ichika mysterious magical gems on a magatama attached to her phone which can make her a magical girl and grants her access to Djinn, powerful elemental spirits, all she's asks is that Ichika records her experiences in what appears to be a judgement test. After agreeing, Manatsu comes out the mirror and transforms Ichika into a Magical Girl wearing a different costume each episode designed by a different artist, being the quirk of this show.
I'll be honest, it's a weird concept, it's one of those shows where it's difficult to support the leads as they woefully get drawn into psychological torture which isn't a pleasant watching experience not helped when Manatsu comes across as a real bitch in some scenes making Kyubey from Madoka Magica seem benevolent in comparison.
What were supposed to understand is the different ways in how power can be used in both the heroic ways and the villainous ways, but the way it comes across is somewhat mean-spirited which doesn't make for the best of climaxes when the big reveal comes in. So really the only reason you'd even watch this show is for the costumes as each artist adds their own unique costume each episode.
Here's the list of artists, what their known for and which episode and costume they did.
1. Megumi Kadonosono - Sun (Kiddy Grade & Uta Kata Character Designer)
2. Suezen - Moon (Yadamon Creator & Shining Force II Artist)
3. Hajime Ueda - Earth (FLCL Manga Artist)
4. Keinojou Mizutama - Water (Brigadoon Character Artist)
5. Kaishaku - Fire (Steel Angel Kurumi Manga Group)
6. Hidefumi Kimura - Heaven (Design & Screenplay Kiddy Grade & Uta Kata)
7. Keiko - Wind (Figurine Designer)
8. Hajime Watanabe - Flowers (Character Designer Kodocha)
9. Mine Yoshizaki - Thunder (Manga Artist Sgt. Frog)
10. Koshi Rikdo - Darkness (Manga Artist Excel Saga)
11. Ken Akamatsu - Sea (Manga Artist Love Hina & Negima)
12. Keiji Gotoh - Mirror (Director & Artist Kiddy Grade & Uta Kata)

Quite a list there, would loved to have seen a few more of them but they are nice Magical Girl costumes and functions as the show's greatest strength and high production values only make it all the more appealing.
Final Verdict: It's an attractive looking series and is good inspiration for upcoming artists but the story is too complicated and the characters aren't worth supporting and just make you hate them.