Mahou Tsukai Tai! vs. Shamanic Princess is a oVA anime, produced by Triangle Staff.

About the production: there is 1 episode of about 5 minutes and its current status is "finished".

Its main genres are comedy, fantasy and mahou shoujo.

On AniList, Mahou Tsukai Tai! vs. Shamanic Princess has an average score of 49%, an average score, and appears on 857 users' lists.

The franchise continues in or follows from: Mahou Tsukai Tai! and Shamanic Princess.

A parody-esque epilogue to both Shamanic Princess and Mahou Tsukai Tai!. As a marketing ploy back when Shamanic Princess was first released, buyers who purchased all six first edition LD's of both Shamanic Princess and Magic User's Club, and sent in their proof of purchases before a deadline received a special OVA entitled Shamanic Princess vs. Magic User's Club. It was never sold in stores and was a special omake by the series' creators to the fans. The OVA contains an epilogue to both series, which is fitting considering they both came out at the same time. (Source: Wikipedia)

Official synopsis from AniList.