Destiny 2 Ergo Sum
Image: Bungie

How to get Ergo Sum Exotic Sword in Destiny 2

That's a good question.

Nothing like a good old mystery to unfold, especially if it is a new Destiny 2 Exotic weapon. Here is how to get the Ergo Sum Exotic Sword in Destiny 2.

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Destiny 2: How to get Ergo Sum Exotic Sword

One of the many Exotic weapons that The Final Shape introduces in the game is the Ergo Sum Exotic Sword. However, this one is particularly mysterious given the little information provided by Bungie.

However, thanks to our friends at, we can determine that you will need to complete an Exotic quest named “Destined Heroes” to get it. This has a total of 9 steps and unlocks after beating The Final Shape campaign. Here are the “Destined Heroes” quest steps:

  • Step 1: There’s a strange radio transmission coming from the old Tower in the Lost City… and it’s using a Hive frequency.
  • Step 2: Investigate the activity of Savathûn’s Lucent Hive near the portal.
  • Step 3: Speak to Micah-10 through her conduit in the Arbor of Light.
  • Step 4: Talk to Cayde-6 in the Lost City.
  • Step 5: Ghost has something he wants to talk to you about. Go to the ledge of the old Tower in the Lost City to speak with him.
  • Step 6: Talk to Ghost to begin the quests “Lost in the Light” and “Found in the Dark.” Work with your allies to explore the possibility of synergy between Light and Darkness.
  • Step 7: Investigate spikes in Taken energy in the Refraction.
  • Step 8: Go to the Lost City and confer with Ghost.
  • Step 9: Use the Dyadic Prism to access the new landing zone in the Sacrarium and claim your destiny.
Destiny 2 Weapons The Final Shape
Image: Bungie

Be sure to keep playing the campaign to unlock more Prsimatic abilities and use them in conjunction with the Ergo Sum’s traits which you can check out in the table below. Good luck!

Wave Sword FrameTranscendent Duelist
Heavy attack deploys a shockwave uppercut and launches the user into the air.

An immediate follow up swing after the uppercut deploys a homing strike that aggressively seeks a target.
This weapon collects less ammo. Final blows with this weapon accelerate Light and Darkness mastery. Deals increased damage while Transcendent; defeating targets lengthens Transcendence.

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Alejandro Josan
A musician with a heart of a gamer, Alejandro's life has always been accompanied by adventures on Nintendo platformers, countless hours of fantasy RPGs and several third-party FPSs. Currently, he is studying Game Design and Development and Creative Writing, preparing for a long career in the video game industry.