Destiny 2 Xenophage Catalyst: How to Get It and What It Does

TL;DR

• The Xenophage Catalyst was added in the Monument of Triumph update in June 2026.
• It drops from Zulmak, the final boss of the Pit of Heresy dungeon on the Moon.
• The drop is random — there is no vendor, kiosk, or currency shortcut.
• You can farm only the final boss using a checkpoint to save time.
• The catalyst adds Rampage and Chain Reaction, turning Xenophage into an add-clear machine.
• You must already own Xenophage before the catalyst is useful.
• No deadline — Monument of Triumph content is permanent, so you can farm at your own pace.

Xenophage finally has a real catalyst. The Destiny 2 Monument of Triumph update added 26 new Exotic catalysts in June 2026, and Xenophage is one of the best pickups in that list. The catalyst adds two perks — Rampage and Chain Reaction — which turn this already powerful machine gun into a top-tier option for endgame content. Getting it takes some dungeon grinding, but the method is simple and you do not need to go flawless or solo to earn it.

Where Does the Xenophage Catalyst Drop in Destiny 2?

The Xenophage Catalyst drops from Zulmak, Instrument of Torment — the final boss of the Pit of Heresy dungeon on the Moon. That is the only place it can come from. There is no Monument of Triumph vendor selling it, no kiosk to buy it from, and no Exotic Cipher or Spoils of Conquest cost. It is a pure RNG drop from one specific encounter.

The good news is that you do not need to run the entire dungeon every time. Once you unlock the Pit of Heresy, you can reset straight to the Zulmak fight and farm just that encounter on repeat. Each completed kill rolls a chance for the catalyst to appear. Check the Pit of Heresy loot table for a full look at what else this dungeon drops.

You also do not need to solo or go flawless. Any fireteam size works. If someone in your group already has the Zulmak checkpoint, everyone in the team can benefit from it and farm the boss without clearing earlier encounters.

Do You Need Xenophage Before Farming the Catalyst?

Yes. The catalyst upgrades the weapon itself, so it is only useful if you already own Xenophage. If you do not have the gun yet, you need to complete the Moon quest chain first. This involves the Hive statue puzzle in Sorrow’s Harbor, the light relay in Anchor of Light, four Lost Sector rune puzzles, and a secret fight against Volmar inside the Pit of Heresy. After that, Eris Morn hands you the gun.

Once Xenophage is in your collection, you can start farming Zulmak for the catalyst on any run. Some players report getting the weapon and the catalyst on the same first clear — both come from the same encounter, so it does happen.

How to Farm Zulmak Fast for the Xenophage Catalyst

The Zulmak fight is not complicated, but knowing the loop saves a lot of time across multiple farming runs.

Step 1: Start at the Final Encounter

If you or a fireteam member has a Zulmak checkpoint saved, load directly into it. Skip the three earlier encounters entirely. This cuts a 30-minute full dungeon clear down to just the boss fight, which is under 10 minutes per run once you know the mechanics.

Step 2: Spawn and Kill the Sword Knight

At the start of the encounter, a sword-bearing Knight spawns in the arena. Kill it to pick up its sword. This sword is the only weapon that can damage the three mini-bosses that protect Zulmak, so grabbing it is the first priority every round.

Step 3: Clear the Three Mini-Bosses

Three mini-bosses stand at fixed spots around the arena. The Shrieker is in the middle, the Knight is on the left, and the Wizard is on the right. Use the dropped sword to damage each one. Killing all three opens Zulmak’s damage phase.

Step 4: Burst Zulmak Down

Once Zulmak is exposed, stack debuffs like Tractor Cannon and pop damage supers to end the fight quickly. Watch the floor — it goes Solar and will drain your health if you stand on it during certain phases. After the kill, check your inventory for the catalyst and reset the encounter if it did not drop.

If you are running three characters, use each one during the same week for extra rolls. Running alternate characters on the same checkpoint is one of the fastest ways to increase your odds without extra time investment.

What Do the Xenophage Catalyst Perks Actually Do?

The Xenophage Catalyst adds two perks to the weapon: Rampage and Chain Reaction. These two work together in a way that changes how the gun plays in endgame content.

Rampage

Rampage stacks damage on kills, up to three times. At full stacks, Xenophage deals roughly 33% more damage per shot. This makes it significantly stronger in sustained fights where you are getting kills fast — which is exactly the kind of content Xenophage already excels at.

Chain Reaction

Chain Reaction makes every final blow create an elemental explosion. Combined with Rampage, those explosions can chain into more kills, which keep Rampage stacked, which create more explosions. The loop turns Xenophage from a single-target damage weapon into a genuine ad-clear option as well. For PvE content, this makes the gun more flexible than it has ever been.

These are two real perks, not just stat boosts. The Monument of Triumph exotic catalysts update made sure every new catalyst adds something meaningful, and Xenophage is a strong example of that. It lands in the top tier of new catalyst pickups alongside Conditional Finality, Divinity, and One Thousand Voices.

Common Mistakes When Farming the Xenophage Catalyst

A few things trip players up when they start this grind.

• Running the full dungeon every time: You do not need a full clear. Jump straight to Zulmak using a checkpoint and save 20+ minutes per session.
• Looking for a vendor or kiosk: There is none. The Monument of Triumph framework added the catalyst to the game but did not create a shop for it. The only source is the Zulmak encounter.
• Repeating the Xenophage quest: The weapon quest gets you the gun. The catalyst is a separate RNG drop. Running the quest again does nothing for catalyst progress.
• Farming without owning Xenophage: The catalyst is useless without the gun. Get Xenophage first, then farm the catalyst.
• Skipping alternate characters: Each character gets its own loot roll per week. Using all three characters with a shared checkpoint triples your attempts without extra time.

Is the Xenophage Catalyst Worth Getting in 2026?

Yes, especially if you already run Xenophage in your endgame loadouts. The Rampage and Chain Reaction combo is a meaningful upgrade, not just a passive stat bump. With Monument of Triumph marking the end of Destiny 2’s live-service era, this is the final version of Xenophage. The catalyst is what the gun always needed to be a complete weapon.

If you are building toward the Immortal title or working through the full Monument of Triumph artifact list, the Xenophage Catalyst fits naturally into that progression. There is no deadline on Monument of Triumph content, so you can take your time and farm it whenever Pit of Heresy rotates into the featured dungeon slot. Featured weeks increase drop rates across dungeon content, which makes them the best time to run this grind.

For a full look at all the new catalysts added in this update, see the Monument of Triumph new catalysts guide. If you want to know what else to chase in the same dungeon or nearby content, the Destiny 2 dungeons in order page covers the current rotation schedule so you can plan your farming weeks ahead.

Frequently Asked Questions

Destiny 2 is available on Bungie.net, PlayStation Store, Xbox, and Steam.