A student of Beacon Academy and one of the main protagonists of RWBY. Her weapon of choice is a Multi-Action Dust Rapier named Myrtenaster.
The former heiress of the vastly influential Schnee Dust Company, Weiss made her first appearance in the "White" Trailer. After enrolling in Beacon against the wishes of her father, Jacques Schnee, she becomes a member of Team RWBY alongside Ruby Rose, Blake Belladonna and Yang Xiao Long.
Weiss's weapon of choice is Myrtenaster, a Multi-Action Dust Rapier. The rapier has a revolving chamber inside the guard, which has six slots in total, each of which contains a vial of powdered Dust. The revolving chamber is constantly stocked with red, cyan, purple, white, yellow, and blue Dust.
Weiss utilizes the Dust in combat, either in raw form or in conjunction with her Semblance to create various effects that suit the situation. When not using Myrtenaster as a Dust supplier, Weiss utilizes her speed to dodge attacks and her sword to deliver damage through quick thrusts that leave little room for counters.
One of Weiss' most notable abilities is her Semblance, which allows her to create glyphs that can be used in a variety of ways: create a slippery platform to skate on at high speed, generate midair platforms to manipulate her trajectory in the air and perform limited Time Dilation that can speed up actions, to name a few.
With mastery, a Schnee also has the ability to summon avatars of the foes that they have defeated. In "Lessons Learned", Winter Schneespecifies that the summoned foe had to have caused the Schnee to push past who they were and become who they are now. In that same episode, Weiss only manages to summon a tiny version of the sword wielded by the Arma Gigas she defeated in the "White" Trailer. Later, in the episode "Heroes and Monsters", Weiss unintentionally summons the arm of said Arma Gigas to protect Velvet Scarlatina. Nevertheless, she struggles to demonstrate this ability at first, and she tells her sister that "it's the only thing [she's] been having trouble with".
She can also summon the Boarbatusk that she defeated in Peter Port's classroom, as demonstrated when she involuntarily summons it to attack a party guest who offended her in "Tipping Point". After being grounded following the incident, Weiss devotes her time to mastering the ability, eventually learning to fully Summon the Arma Gigas in "Two Steps Forward, Two Steps Back". She can also cause her summons to teleport and use her glyphs as surfaces to jump off, as demonstrated in "Dread in the Air". In that same episode, she defeats a Queen Lancer and gains it as a summon.
In the series, Weiss' glyphs have appeared in a variety of colors for unknown reasons. Blue and white normal glyphs have been shown with the base ability to push whatever is within their influence. Black glyphs have the ability to pull whatever is within their influence, and they appear to involve the use of Gravity Dust, evidenced by Myrtenaster's Dust chamber revolving when Weiss makes the first black glyph. The Time Dilation glyph has a gold-colored clock design and involves the use of Lightning Dust. Summon glyphs are white and have their own unique designs. Using fire Dust with her glyphs make them become a red-orange color.