Destiny 2: How to get Necrochasm and its Exotic Catalyst

Nechochasm Exotic Auto Rifle is available by completing all steps for the Bottomless Pit quest, available to pick up from the raid vendor after completing the raid.

Quest: Bottomless Pit

This quest does not require any currencies to purchase it.

Rewards:

Husk of the Pit
Eidolon Ally (Fully Masterworked)
Necrochasm

Necrochasm Exotic Auto Rifle

Perks

Cursebringer (Intrinsic Trait): Precision final blows with this weapon trigger a Cursed Thrall explosion. Final blows with Cursed Thrall explosions refill the magazine.
Desperation (Exotic Perk): Reloading after a precision final blow or a final blow with a Cursed Thrall explosion increased your rate of fire and improves stability and aim assist.

Catalyst Perk

Outlaw: Precision kill greatly decrease reload time.

Lore

Is your Light bright enough to stand in full gaze of the Hive’s abyss?

Arise for Crota, Son of Oryx, the Hope-Eater! He who has seized the Sky lair above Ceres, which peers into other planes, now vassal to the might of the Worldbreaker! Within these keyholes our brood communes with unheard voices. They who whisper that the curse of our Thralls is a blessing granted by the Deep. Now, in honor of the God-Knight, we fashion these gluttonous whispers into death. His Hellmouth becomes home to the profane: the corpse of the Sky, reborn in the abyss.
— Enkaar, the Anointed

How to get Necrochasm

To get Necrochasm, defeat Crota (final encounter) and pick up the Bottomless Pit quest from the raid vendor, “Sword of Crota”.

Steps

Defeat 100 Hive with Husk of the Pit, Husk of the Pit final blows in the “Crota’s End” raid grant additional progress.
Acquire 20 Essence of the Oversoul from encounters in Crota’s End raid and Triumphs.
Claim Necrochasm

🎦 View guides on YouTube.

Essence of the Oversoul

Essence of the Oversoul is a material item required to upgrade Eidolon Ally (the legendary variant of Necrochasm) to Necrochasm.

The following sources drop this item:

Crota’s End raid Triumphs (11 total)
Completing Crota’s End raid encounters.

NOTE: Essence of the Oversoul can be farmed as much as you’d like.

Crota’s End Raid Triumphs

Reward:

Triumph	Objectives	Rewards
Crota's End	Trophies from the "Crota's End" raid.	-
Perfected Truth	Complete all encounters in the “Crota’s End” raid without dying and without leaving the activity.	Essence of the Oversoul Shed Catapace shader
Spoils of Conquest	Loot all hidden chest in the "Crota's End" raid.	Warped Rachis shader
Unboxed	Complete all encoutner in "Crota's End" with a full fireteam of clanmates.	-
Retributive Charge	Complete all four encounters in the "Crota's End" raid with a full fireteam of Arc subclasses.	-
Enlightened Emanation	Complete all encounters in the "Crota's End" raid with a full fireteam of Solar subclasses.	-
Hidden Depths	Complete all encounters in the "Crota's End" raid with a full fireteam of Void subclasses.	-
In Unison	Complete all encounters in "Crota's End" with a full fireteam of the same class.	Essence of the Oversoul
Conservation of Energy	Complete the "Conservation of Energy" challenge mode.	Essence of the Oversoul
Feather-Light	Complete the Abyss encoutner in the Stills without letting any player reach 10 stacks of Weight of Darkness.	Essence of the Oversoul
Precarious Balance	Complete the "Precarious Balance" challenge mode.	Essence of the Oversoul
Threatening Reach	Defeat all Swordbearers in the Oversoul Throne Bridge encounter from the opposite side of the chasm.	Essence of the Oversoul
Equal Vessels	Complete the "Equal Vessels" challenge mode.	Essence of the Oversoul
Communal Rites	During each round of the Ir Yut encounter, at least one player must expunge Ir Yut.	Essence of the Oversoul
All for One	Complete the "All for One" challenge mode.	Essence of the Oversoul
Singular Sensation	Complete the Crota, Son of Oryx encounter with only one player Enlightened at at time.	Essence of the Oversoul
Broken Throne	Complete the Master tier of "Crota's End" on all 4 encounters.	War's Lament Essence of the Oversoul +2
Conquest By Virtue	Complete all encounter challenges in the Master tier of "Crota's End" on all 4 encounters.	Crota's Exile

Necrochasm Exotic Catalyst Steps

To acquire the Exotic Catalyst for the Necrochasm, complete both timed trials in Crota’s End raid, and ensure that one player has the Necrochasm equipped while standing on a plate. Players without the Necrochasm won’t receive the Catalyst.

Timed Trial #1

Time limit: 1 minute, 30 seconds

Find and activate the glowing plate located after the Bridge encounter. Once activate it will say “Crota’s Minions appear”.
- Plate location: When looking at the stairs that go to the next encounter, go to the far upper right, you should see a glowy plate.
- Make sure at least one fireteam member has the Necrochasm equipped when activating the plate, or it will not work.
Take out all Swordbearers and many enemies (swords can be dropped and picked back up). If you beat all the enemies in time, you’ll see a message saying “Crota’s minions are defeated.”

Time Trial #2

Time limit: 1 minute, 30 seconds

Find and activate the second glowing plate, located after completing the Ir Yut, Deathsinger encounter.
- This plate is located in the room on the bottom right, below where Hive Boomer Knights spawn.
Repeat the process of defeating all enemies within the time allowed.
- Heads up: This Timed Trial is much tougher. There are three Swordbearers (left, right, middle) and a significant amount of powerful Wizards and Gatekeepers.
Once you see the message saying “Crota’s minions are defeated” the Catalyst for Necrochasm will drop.