Black Gold Saw is a girl with red eyes and long black hair. A red flame shoots out from her right eye. She has a pair of curved black horns whose color turns to red as it reaches the tip. Like Dead Master, Black Gold Saw also has skeletal claws. Her outfit is similar to Black Rock Shooter's except for the design of her jacket and her bikini top. Black Gold Saw is shown to have long black hair fading down to red. She has a pair of curved red horns on her head. Black Gold Saw also has skeletal claws that also resemble Black Rock Shooter Beast's claws. Her jacket, which is tied together with a gray ribbon, seems to bear a little bit of resemblance to MEFE's clothing. Her sleeves have two stars on them and a red belt attached along with two white lines running above the belt. Her belt is also different, with a white hexagon-shaped buckle. Her red grieves expose the back of her knee and the base of her foot. Like all of the "other selves" in the anime, her red eyes have a circular pattern in them. Her weapon of choice is a large sword with a golden blade curving at its point. It has a long handle with a skull-like object on top and a hilt shaped like a crescent; its name is King Saw.
Her red eyes are shown watching over various places in the Otherworld.
She finally makes a physical appearance when Dead Master causes the destruction of Chariot's world by breaking her chains while Black Rock Shooter and Chariot were fighting. She sticks her blade into the sky, stopping the destruction's time, and cuts into the ground, creating a fissure that carries Dead Master into it. She then vanishes.
Black Gold Saw is later seen in a deep canyon, with a sprinkler. The liquid that falls to the floor is transformed into hooded human-like beings. She holds out her hand to one, but it shivers; however, her lair starts to fall apart and Black Rock Shooter appears. She aims her cannon at her, but Black Gold Saw dodges and presumably escapes once again.
Later, she is seen observing the chaos in Dead Master's world as Yomi becomes more and more unstable as a result of Saya's actions. She walks into the green liquid covering the world and disappears again.
While watching Black Rock Shooter and Dead Master fight she later jumps into the green liquid and disappears again.
Following Mato's link with Black Rock Shooter and subsequent mental breakdown, causing BRS to go insane, Black Gold Saw is seen watching BRS's transformation into Insane Black Rock Shooter. Upon Insane Black Rock Shooter's appearance, Black Gold Saw begins her attack, managing to leave a deep gash in Insane Black Rock Shooter's right arm to which the latter rips it off as Black Gold Saw backs away. She then uses King Saw to try and shield herself from the hail of bullets raining down on her from Insane Black Rock Shooter's Insane Cannon Lance. As the fight continues, Black Gold Saw manages to rush past her Cannon Lance, which was being tossed around by Insane Black Rock Shooter's chains, and try to take advantage of an opening.
The Cannon Lance reveals to have a backwards firing gun that shears off Black Gold Saw's right arm, causing her to miss her attack as King Saw falls in front of Black Rock Shooter and sending Black Gold Saw skidding across the ground. Before Insane Black Rock Shooter could begin her assault again, Black Gold Saw retreats by dissolving into the ground, but is pursued as Insane Black Rock Shooter uses King Saw (which she manipulates with a chain), Cannon Lance, and Insane Blade Claw to rip the portal open and dives in. In Black Gold Saw's own battlefield, she takes out her watering can and creates a small armed army of the hooded beings again which hardly slows Insane Black Rock Shooter.
As Insane Black Rock Shooter closes in, Saya links with Black Gold Saw and tries to speak out to Mato within Black Rock Shooter. The tactic seems to work as iBRS' attack suddenly stops and can't seem to get her arm down. Insane Black Rock Shooter is then thrown back against a pillar by an unseen force and is then pinned and restrained by several more pillars. Black Gold Saw, seeming to be under full control of Saya, then uses the watering can to create something of a mirror beneath her where Saya can relay her memories.
After the flashback, Insane Black Rock Shooter breaks out of the prison and rushes to attack Black Gold Saw with her King Saw. With one last plea, Black Gold Saw closes her eyes, seeming to accept her fate but is saved by Strength, who manages to catch Insane Black Rock Shooter off-guard and send her flying into a pillar. Before Insane Black Rock Shooter could continue her attacks, Strength breaks the ground beneath them, grabs Black Gold Saw, and escapes to her own world. Insane Black Rock Shooter gives chase until they all appear in a rubix cube-style world with the cube structure floating in mid-air. Strength sets the unconscious Black Gold Saw down as she is then moved elsewhere for protection.
Later on, Saya mentioned that Black Gold Saw is forever imprisoned in Strength's world and cannot reach her as a result. In the final episode, she is shown to be right back in her own battlefield. While she stays in her own world, she is heard quoting her own feelings along with Chariot and Dead Master and how their only wish is to protect their other forms. After Insane Black Rock Shooter's defeat, she is seen with Chariot, Dead Master, and the hooded figures together as the worlds of each respective other self merged into one.
Which is what I was working on. I saw her pop in and figured there's no point having two of the arcana Queens out at once, too much overkill. So I decided to scrap elder caster and was working on looking for a new villain, to little success. There isn't too much I like that screams big villain.