It's a hand-me-down. My great-great-grandfather used it to fight in the war.
—Jaune Arc, describing his weapon's history

Overview Image Gallery

Crocea Mors[1] is Jaune Arc's signature weapon. Jaune has stated that it was passed down from his great-great-grandfather, who used it in the Great War.


The sword itself is a simple longsword with a blue handle and a golden cross-guard. Jaune can transform the sheath into a heater shield for combat. The shield is white with a gold trim, displaying Jaune's emblem in the center.

His explanation for the shield's transformation is that when his arm gets tired of carrying it, he can shrink it down. However, when Ruby Rose points out that it would still weigh the same, Jaune sheepishly concedes the point. The shield appears to deploy with significant force, enough for its tips to embed themselves in a wooden doorway in "Jaunedice".

Both the sword and shield are shown to be incredibly durable, despite apparently being forged several generations prior to the present day. The sword is sharp enough to decapitate an Ursa Major, and the shield is sturdy enough to withstand several direct blows from an Ursa, a Death Stalker and The Executioner with no apparent damage.

The sword itself has several nicks on the blade and scratches, and the shield has multiple scratches on it.

Anima UpgradeEdit

In "The Next Step", Crocea Mors and Jaune's armor were upgraded using either the broken remains of Miló and Akoúo̱; the weapons of the late Pyrrha Nikos, her circlet or both. The upgrade was made by the blacksmith of a village in Anima as a form of payment for Team RNJR defeating a Geist.

The sword now has a heavier and more elaborate cross-guard and hilt. The shield is also accented with gold, including a design similar to Pyrrha's circlet at the point of the shield. The scuffs and scratches on both have also been mended, and the sword's blade has been polished to a new shine.

Due to the modifications, the sheath now possesses the ability to become a wider blade for the sword by extending the sharpened edges of the shield. Doing so adds the weight of the shield behind Jaune's blows, increasing the force of his attacks.

Atlas Upgrade Edit

Jaune hard light shield upgrade

Hard-light Dust upgrade

When everyone arrives in Atlas, they get upgrades to their weapons. Jaune's shield is upgraded with hard light dust that extends to the sides making the shield wider.


  • Crocea Mors is Latin for 'yellow death' and the name of Julius Caesar's sword in some legends. Appropriately, the same legends have it becoming embedded in a shield.
  • Before its name was revealed, Crocea Mors was called Sword and Shielth. Jaune's voice actor and writer of RWBY, Miles Luna, acknowledged the name created by the fans and used it during the interviews before Monty Oum decided to reveal the true name of his creation via Facebook.
  • The old blade had the same design as the sword used by the male Huntsman on the statue in Beacon Academy that features a Huntsman, a Huntress, and a Beowolf.



Start a Discussion Discussions about Crocea Mors

  • What upgrade more would you prefer added?

    9 messages
    • technically it would be a charge swoard not a switch axe and the wrist crossbow rminds me of a show called wakfu and would be a wondeful id...
    • Please don't comment on threads, blogs, or comment chains that haven't been touched in more than three months. If this is an excepti...
  • Correction about the Latin translation

    3 messages
    • I'm not sure there is a Latin word for corset...considering they weren't a thing until the 16th century. Plus every translation...
    • Are you translating Cro'''c'''ea or Cro'''s'''ea. Because that can severely cha...
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