Persys, Primordial Ruin is the last boss in the new Spire of the Watcher dungeon. It is essentially a massive Wyvern with a ridiculous amount of HP. Defeating this boss requires you to execute all the mechanics that you have learned so far in the dungeon. In this Destiny 2 guide, we have detailed all there is to know about easily defeating Persys, Primordial Ruin in the Spire of the Watcher dungeon.

After landing in the boss area, you will see that it is divided into 2 rooms — Isolation and Reactor. While you are in the Isolation room, clear the room and defeat a Minotaur to get the ‘Arctrician’ buff. With this buff active, you need to shoot 5x red-wired nodes — 4x of these are on pillars and 1x on top of the door leading to the Reactor room.

Once that is done, one of yellow-wired nodes will unlock — Each side (where the Minotaurs appear) has 2x nodes. Out of these 4x yellow-wired nodes, one will randomly unlock. Similar to previous encounters, you will need to activate these nodes all the way to the Reactor room — there should be 6x nodes in total, starting from the Isolation all the way to Reactor. After one yellow-wired node is fully activated, you will be required to do one more.

After activating both the yellow-wired nodes, a message reading ‘Reactor Surge Imminent: Seek Safety’ will appear on the screen. At this point, Persys, Primordial Ruin should be in the Reactor room. While the boss is in the Reactor room, the entire team needs to go to the Isolation room and shoot 5x red-wired nodes to start the DPS phase.

A few things that you should consider using for an easier DPS phase are:

  • 1x Well of Radiance with Starfire Protocol
  • 1x Titan with Cuirass of the Falling Star
  • Witherhoard, Lumina, Gjallarhorn, Demolitionist / Clown Cartridge Rocket Launcher, LFRs with Divinity
  • Weakened Clear, Font of Might, Resistance Mods

This is how you can easily beat Persys, Primordial Ruin in Destiny 2: Spire of the Watcher. For more tips and strategies, be sure to see our detailed Destiny 2 wiki page.

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