Ability: Blake's weapon; Gambol Shroud, is classified as a "Variant Ballistic Chain Scythe". Gambol Shroud, when unsheathed, appears to be a dark gray katana and is equally as effective, if not more, than its sheath. The katana also has a pistol built into its guard, which can be used to fire at point blank range. In pistol form, the weapon resembles a kama (Japanese sickle), with the gun barrel pointed in the opposite direction of the sharp end. Blake in naturally fast, as she has the speed "faster than a ninja" which allows you to see the illusion of a clone. ~Akuma
Story: As seen in the "Black" Trailer, she seems to have some righteous moral obligations in regards to human life, as she disagrees with Adam's plan to blow up the train with the crew still on board. Blake is described as being "mellow" by her voice actor, Arryn Zech. She also appears to be open, calm, and not afraid to speak her mind, as seen when she explains who Weiss is to Ruby, and then immediately points out the Schnee Dust Company's shady history, right in front of Weiss.
How she joined the game: This game was her first mission in her new high-school along with Black, Yellow and White, they go on trying to complete their mission to beat the monster who they wish to come in contact with but do they have enough power?