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I'm sure your familiar with possession-type Grimm. This one is an amalgam of smaller-sized Grimm we've successfully captured. They are humanity's nemesis, depraved monsters. Its strength cannot be compared to that of a droid... I'm sure that's obvious.
~ The Secretary sending the Giant Armor to fight Weiss.

Arma Gigas, also known as the Armored Knight or the Giant Armor, is a minor antagonist in the American web cartoon series RWBY and its Japanese manga adaptation/prequel. It is the opponent of Weiss Schnee in the "White" Trailer and Chapters 3 and 4 of the manga. It was revealed to be an amalgamation small possession-type Grimm in the form of an Arma Gigas.


The Armored Knight appears as massive suit of medieval-type armor, standing at between 10 and 12 feet tall. All of the main armor components are a dark, shiny grey with black under armor and helmet view area.

In the manga, the pointed helmet is replaced with a more domed one with curly eye holes along the front and sides, and red eyes shine out from the blackness within its helmet.


"White" Trailer

Weiss faces the armor, but is unable to deal any real damage due to its size and enormous amount of durability. The armor manages to hit Weiss, scarring her across the eye. However, Weiss gets back up and retaliates with Dust and Glyphs, causing the armor to loose its sword and fight with its fists. However, Weiss blasts the armor and traps it before striking the blow that kills the Grimm and destroys the armor.


Chapters 3 and 4 of the manga reveals the armor to be a giant suit of armor created by the Schnee Dust Company and possessed by a strange Possession-type Grimm made by merging several Arma Gigas Grimm together. When Weiss reveals that she plans on studying at Beacon Academy in Vale as opposed to the school in Atlas, her father and the President's Secretary set up for her to fight the Giant Armor to prove her worth.

She then fights the armor the same way as in the "White" Trailer, but the armor has a different design.

Volume 3

In "Heroes and Monsters", when Weiss tries to summon an avatar of one her fallen enemies, she rushes to Velvet's aid and summons the armor's arm and sword.

Volume 4

In "Two Steps Forward, Two Steps Back", it is revealed that Weiss has learned how to summon the entirety of the Giant Armor's avatar, though it is smaller and she causes significant damage to her room in the process.

Volume 5

In "Dread in the Air", Weiss is on a cargo ship that is attacked by a swarm of Lancers. In order to defeat the Queen, Weiss summons the Giant Armor's avatar and uses it to battle and kill the Queen, but the ship crashes.

Weiss is found and kidnapped by Raven Branwen and her tribe. While in a cage in their camp, she summons a small version of the Giant Armor's avatar to cut her free, and later a large one to free her from the cage and soon reunite with partner Yang Xiao Long.

RWBY: Amity Arena

Though the original Arma Gigas does not appear in RWBY: Amity Arena, the Summoner Weiss unit has the ability to summon the Arma Gigas avatar to aid her in combat, being a melee unit while she is a ranged unit.

Powers and Abilities

The Armored Knight is shown to be proficient in swordsmanship and hand-to-hand combat, as it tracks its foes and strikes with swift and powerful blows. It is also shown to be fast for its size, sprinting after Weiss and reacting quickly when attacked. It can also wield its massive sword both single and double handed, showing immense amounts of strength and control. It is also highly durable and able to withstand sword strikes and Dust attacks.





  • Some pieces used in Remnant: The Game appear to resemble the Giant Armor, as seen in the episode "Welcome to Beacon".
  • There is a picture of the Armored Knight in Weiss' room in the Schnee Family Home, as seen in "The Next Step".
  • There is some speculation as to the location of the Armored Knight and Weiss' fight. It takes place at the Schnee residence in the manga, but the White Trailer shows a more enigmatic location that fans have dubbed the "White Castle". Some believe that this is the room in the Schnee residence where the battle took place, while others believe that the location is a result of the White Trailer being a flashback or dream sequence.
  • Weiss' Arma Gigas summon appeared in her battle in the Rooster Teeth series DEATH BATTLE!, though Weiss lost.

External links


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Salem's Faction
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Cinder's Faction
Cinder FallRoman Torchwick (Manga)Mercury BlackEmerald SustraiNeopolitan

White Fang
Adam TaurusSienna KhanWhite Fang LieutenantCorsac and Fennec AlbainIlia AmitolaYumaTrifaPerryDeeryWhite Fang Associate

Xiong Family
Hei Xiong Sr.Junior XiongMalachite SistersJunior's HenchmenDJ

Branwen Tribe
Raven BranwenVernalShay D. Mann

Schnee Dust Company
Jacques SchneeSecretaryArma Gigas

Kingdom of Atlas
James IronwoodAce Operatives (Clover EbiHarriet BreeVine ZekiElm EderneMarrow Amin) • Caroline Cordovin

Happy Huntresses
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The Spiders
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Creatures of Grimm
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God of DarknessMarcus BlackTockMadameMadame's DaughtersSystem No. XXJimmy VanilleCarmel VanillePaul Parrot

RWBY Chibi
Cinder FallEmerald SustraiMercury BlackRoman TorchwickNeopolitanTrouble ClefFloyd the GeistMike and MartyCardin Winchester