Conquering the Witness in Grandmaster Excision: A Guardian's Guide

Destiny 2 Grandmaster Excision delivers an intense, legendary 12-player challenge where unity and Prismatic subclass mastery are essential for victory.

As a seasoned Guardian who has stared into the abyss of the Pale Heart, I can tell you that facing the Witness in the Grandmaster difficulty of the Excision mission is an experience that reshapes your very understanding of combat in Destiny 2. It’s not merely a fight; it’s a 12-player symphony of coordinated chaos against a cosmic entity seeking to unmake reality itself. The stakes are absolute: failure sends your entire fireteam back to orbit, a consequence that hangs over every decision like a guillotine. While the normal version offers a taste of this epic confrontation, Grandmaster Excision is a different beast entirely—a crucible that forges legends or breaks spirits.

The first and most critical lesson is one of unity. In this activity, attempting to be a lone wolf is like a single neuron trying to comprehend the entire brain—it’s futile and leads to a swift demise. From the very start, where you must capture four zones and defeat the Cornerstones of the Witness under relentless assault from Champions, your survival depends on moving and fighting as a single, cohesive organism. All twelve Guardians must stick together like a school of fish navigating a predator-filled reef. This collective focus means Supers are constantly lighting up the battlefield, enemies are perpetually suspended or frozen, and control is maintained through sheer, overwhelming numerical force. Doing one objective at a time, as a unit, is non-negotiable.

This philosophy becomes even more vital considering that not every Guardian can or will use voice communication. Yet, I’ve found success in these silent runs by treating the team’s movement as a kind of emergent hive mind. We advance through sheer shared instinct and by reading the ebb and flow of the battle, a silent agreement forged in the heat of combat.

Key Survival Pillars for Grandmaster Excision:

Pillar	Description	Why It's Critical
Unbreakable Unity	All 12 players focus on the same target/objective.	Prevents isolated deaths and maximizes area control through combined abilities.
Resource Management	Farming Champions for Revive Tokens before key phases.	Revives are limited and crucial; running out is a team-wide death sentence.
Prismatic Prowess	Utilizing the full kit of the new Prismatic subclass.	Provides essential crowd control (Suspend/Freeze) and breaks specific shields.

Your toolkit is everything. The arrival of the Prismatic subclass has been a revelation, a chameleon-like adaptation that lets you shape your light and dark abilities to the challenge at hand. In Excision, its value is immeasurable. The ability to use Transcendent grenades to Suspend or Freeze key targets is like having a cosmic pause button for the most dangerous enemies. Remember, once you enter the Witness's inner sanctum for the final showdown, your Super energy is locked away. Your Prismatic abilities, grenades, and weapons become your primary lifeline, so a well-tuned build is paramount.

Speaking of weapons, ammo anxiety—that old, familiar foe—is mercifully absent in the final chamber. Just behind the stalwart Saint-14, a Heavy Ammo crate sits, a font of endless munitions that refreshes periodically. This turns weapons like Outbreak Perfected, with its brilliant damage-over-time potential, or high-impact Exotics into sustained instruments of ruin. It allows you to focus on precision and survival rather than conservation.

Now, let’s talk about the heart of the struggle: the Witness itself. This fight is a dance with death, and misreading its cues is fatal. When it’s not in a damage phase, it will mark areas of the platform with an ominous orange glow. Stepping into these is an instant kill—they are not warnings, they are verdicts. Your goal is to shoot the cracked, floating bands on its arms to progress.

The damage phases are where knowledge separates the victorious from the vaporized. The Witness attacks with a terrifying, patterned rhythm:

• It will assault one side of the platform at a time. Watch its hands: a raised left hand means dodge to YOUR left, as the right side is about to be obliterated. It always attacks in a left-right sequence, so be ready to shift.

• When its eyes glow, prepare for a concussive blast. Jump back immediately to avoid being knocked off the platform.

The third and final damage phase is your salvation—it has no time limit. Once you survive to this point, you can breathe. Forget the stress of optimal DPS rotations. Simply dodge its patterned attacks and chip away with Kinetic weapons. The fight becomes a war of attrition you are destined to win if you keep your calm.

Resource management extends beyond ammo to your very existence. Revive Tokens are your team's shared lifeline, earned only by defeating the toughest foes: Champions, Tormentors, and Subjugators. Farm them diligently, especially the endless Champions in the final room, as you can stockpile over 20 tokens. This stockpile is your buffer against misfortune. However, a cold but necessary strategy emerges during the Light Fissure collection phase. Guardians depositing fissures will often die. Do not immediately revive them unless your token count is high and your numbers are critically low. Completing the objective by depositing 16 fissures will automatically resurrect fallen allies, preserving your precious tokens for the more chaotic final battle. Sometimes, strategic sacrifice is the key to the greater victory.

Ultimately, conquering Grandmaster Excision is about shedding the mindset of a lone hero and embracing the power of a unified host. It’s a test of patience, pattern recognition, and collective resilience. When all twelve Guardians move as one, weathering the Witness's assaults and slowly unraveling its form, it feels less like a video game encounter and more like a myth being written in real-time. We are not just shooting a boss; we are a celestial jury delivering a final verdict on the entity that sought to shape our fate. The victory, when it comes, is shared, absolute, and utterly unforgettable.