Overwatch's next hero, Orisa, will be released on March 21 across all supported platforms. Blizzard announced Orisa's release date as part of a newly released preview trailer.

The trailer gives a behind-the-scenes look at Blizzard's design process for Orisa, her role in the Overwatch meta, and why the team's so excited for the quadruped robot. When Overwatch's director, Jeff Kaplan, can't stop smiling while describing how fun Orisa is to play, it's clear the developers have something special.

Blizzard has kept Orisa on the Overwatch Public Test Region for a much longer period of time than other characters added to the game post-launch due to worries regarding her balance. With Orisa filling the role of "Anchor Tank," a type of tank that a team can collect around for protection, balancing her was a tenuous endeavor. If Blizzard makes either her defensive or offensive capabilities too strong and she'll become a default pick.

Since launching on the PTR on March 2, however, Orisa has only received two small changes. Her Fusion Driver's magazine was shrunk by about 25% and her Supercharger's charge rate shrank by about 15%. Those are both sizable nerfs, but nothing overzealous, and while some in the Overwatch community still call her Orisa the Invincible, she's increasingly seen as balanced -- or at least as balanced as the other Overwatch heroes.

Orisa's role within the setting of Overwatch is also particularly interesting. First off, it's rather clear that Blizzard decided they needed a hero to represent the Numbani map, which is a high-technology city within Africa.

From there, however, Orisa's story is all new. She was "born" only recently, created by a young and brilliant girl named Efi. Despite her size and strength, Orisa will be the youngest hero within Overwatch yet. Considering most Overwatch heroes have long, complicated histories within the organization, Orisa's emblematic of a new era of Overwatch.

Most players, however, will just know her as the huge, terrifying robot that you don't want to stand in front of. Lore be damned, Orisa's a hero that even Reinhardt might think twice about charging.

Overwatch is currently available on PC, PlayStation 4, and Xbox One. Orisa will unlock across all platforms starting March 21.