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Production overview


Emperor Calus

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"Suffering to the conquered."
— Weapon description

Heartshadow is an Exotic Sword added in Season of the Haunted. It is a random drop from the Duality dungeon, however the completion of various triumphs can increase the drop chance.


  • Exhumation: Heavy attacks made with full Sword energy turn you invisible and fire exploding Void projectiles.
  • Jagged Edge: Increased damage at the cost of sword ammo.
  • Burst Guard: Sword Guard has maximized efficiency and high resistance, but low endurance.
  • Shot in the Dark: Remaining invisible grants this weapon increased damage for a brief duration. Hitting a target with this weapon's projectiles while Shot in the Dark is active weakens them.


The catalyst can be obtained by defeating three mini-bosses throughout the Duality dungeon, retrieving their standards and placing them at specific points.

The catalyst, once completed, will grant increased ammo capacity and an additional perk:

  • Wraithwalk: Faster movement while invisible.


"And my vanquisher will read that book, seeking the weapon, and they will come to understand me, where I have been and where I was going."
The following is a verbatim transcription of an official document for archival reasons. As the original content is transcribed word-for-word, any possible discrepancies and/or errors are included.


Enactine is one of the most resilient metal alloys we Cabal have ever encountered. It is a quantum-mimetic mineral that, when exposed to Psionic energy, can be locked into a specific shape. Even when it is broken, melted down, or reduced to a fine dust, it can be returned to its quantum-locked form by touching a portion of it and remembering its previous shape.

The ritual blade Heartshadow has been remembered back into its original form countless times over the millennia since its mind-forging.

I first held the blade when it was passed down to me after my mother's death, and upon the birth of my daughter, bequeathed it to its rightful owner, her mother. And when her mother was… no longer, it was my duty then to pass the blade on to Caiatl.

But for some reason, she refused to simply accept the way of things. Even after she sent me into exile I would continue to present the blade to her. But each time, Caiatl would return it to me—broken—along with the head of the assassin that I had entrusted with it. Each time, I vowed to return the blade to her. One way or another.

At some point, this exchange became more than tradition. It became the only way in which we communicated. I do not remember when. I choose not to remember. For remembering is pain behind my eyes and daggers in my chest. And the past cannot be destroyed; it lives on in every bitter recollection.

Until the end of time.