The Fragmented One

The Fragmented One is a monstrous conglomerate of lesser Fragments. It is a hidden and extremely powerful variant of The Fragmented Bosses, and can be fought on Effervo, Deimos, following the completion of Whispers in the Walls.
==Summoning==
Much like the standard Fragmented bosses, Tenno must first acquire Atropos Probes and inject their serums into Vitreum scanners to scan for nearby Murmur Eyes. Once 30 Murmur Eyes have been collected, the Vitreums will shut down and the boss can be challenged. However, while on The Steel Path, players can reactivate the Vitreum scanners to acquire an additional 30 Murmur Eyes. Once 60 eyes have been collected, Fibonacci will comment that a significantly more difficult enemy is ahead.
==Behavior==
As a combination of the 3 lesser Fragmented bosses, The Fragmented One has access to all of its attacks. Additionally, many of its attacks inflict a unique proc that, alongside distorting their hud and draining their energy, will also dispel active abilities and disable all abilities for 3 seconds. Only buff-based abilities will be disabled (i.e: but not ).
Summoning The Fragmented One will apply the following modifiers for the remainder of the mission:
*Self-revive is disabled. A player that dies is permanently out of commission and cannot be brought back. A dead player will be unable to collect the rewards dropped by The Fragmented One, and may also lose their eligibility for any rewards once the 2-minute Inactivity Penalty triggers.
*Last Gasp's drain begins 2 seconds earlier with each use.
*Bleedout timer reduces with each revive, down to a minimum of 5 seconds.
*Team Bonus Consumables have a 3 minute cooldown.
*Deployable allied units such as Specters and On Call Crew cannot be used.
**Air Support Charges that summon allies, like the Sentry Gun or Kahl Beacon, can still be used.
*The fight level of Murmurs spawned by The Fragmented One will scale based upon the size of the current session:
**In solo session, enemy level is set to 225.
**In 2-player session, enemy level is set to 250.
**In 3-player session, enemy level is set to 275.
**In a full squad, enemy level is set to 300.
*Eximus variants of Murmur Constructs (The Anatomizer, The Hollow Vein and The Severed Warden) will continually spawn in.
===Phase 1===
Attack 	Description 	How to Counter 	Dispels, Disables and Magnetic
Arm Swipe 	Swipes at any nearby Tenno in melee range. 	Stay outside of The Fragmented One's melee range.	✓
Beam March 	Projects four laser beams as a semi close-range move and marches forward. 	The Fragmented One can only walk forward during this attack. Tenno can avoid it by walking around the boss, and attacking it from behind.
Additionally, The Fragmented One's weak spot is vulnerable for the full duration of this attack.	✓
Ground Slam	The Fragmented One rears up and charges slams the ground, sending out four lines of hands in an X-pattern. The hands have tracking and will linger on the field for 10 seconds, inflicting and .	During the charge-up, The Fragmented One's weak spots will manifest. Circles of energy will briefly appear around each sphere before collapsing, telegraphing that a slam is imminent. Either retreat to a safe distance and roll to avoid the hands, or jump above their reach.
Avoid the hands until they disappear, as they will still be able to damage you and inflict status effects.	✓ (Slam AoE)
✗ (Protruding Hands)
Void Flail 	The Fragmented One rips off two of its arms, turning them into laser flails that it spins around itself. One blade is spun twice clockwise at ground level, while the other is spun once counterclockwise at the boss's head level. These attacks can inflict .
Afterwards, The Fragmented One combines its arms into a single, giant flail that is slammed in front of the boss, inflicting .	It is easiest to dodge this attack while standing in front of the boss. Jump over the first flail, then use Aimglide to avoid going high enough for the second flail to hit you. Then jump over the first flail again. The Fragmented One will track your position as it winds the subsequent slam attack; the only way to avoid it is to dodge during the attack.
Due to the inflicted by The Fragmented One's laser flails, unwary Tenno can easily be rendered prone for the entirety of this attack, typically resulting in their death. This can be avoided by simply dodging.	✓
Laser Gaze 	The Fragmented One summons massive Void eyes that each charge and fire a powerful laser.
The number of eyes depends upon the size of the party, with one eye for each player. 	The lasers fired by the Void eyes are capable of staggering The Fragmented One by placing the boss between yourself and the eye. While staggered, The Fragmented One's weak spot is exposed for a moderate duration.
Note that this attack is treated as a casted ability, and The Fragmented One may begin another attack while the beams are charging.	✓
Rock Fling 	The One leans down and picks up bundles of stones and tosses them around the arena in omnidirectional arcs. Has a chance to deal damage. 	Maintain a safe distance from The Fragmented One.	✗
===Phase 2===
During the second phase, The Fragmented One will use the following attacks alongside those from its first phase. Additionally, swarms of Murmur Fragments will emerge from the ground every 30 seconds.
Attack 	Description 	How to Counter 	Dispels, Disables and Magnetic
Burrowing Dive 	Burrows underground and then launches itself into the air to bodyslam nearby Tenno. 	Look for a moving dust cloud to determine the Fragmented's position. 	✓ (Body Slam)
Tower Eruption 	The boss moves to the middle of the arena and forms a spinning tower, causing energy geysers to erupt from the floor as shockwaves radiate outwards from the tower. These attacks inflict . 	Jump over the shockwaves while dodging the geysers as they appear. The Fragmented One's weak spots are vulnerable for the full duration of this attack.	✓
Siphon Shield 	Unleashes an arena-wide sphere that blocks incoming bullets and draws in nearby Fragments. The sphere implodes after 10 seconds, flinging enemies and players away from the epicenter of the boss. 	During this attack, The Fragmented One can only be damaged from within the sphere, where its weak spots will be completely exposed. However, standing inside of the sphere will disable your shields, leaving you vulnerable to the implosion.
Withdraw to a safe distance before this happens, or don't enter the sphere at all.	✓
Void Barrage 	The One conjures a large swirling orb of energy that releases multiple smaller projectiles that spin clockwise around the area.
The missiles weakly home onto nearby Tenno, and deal damage on impact with a chance to inflict status. 	Run clockwise around the arena to make it more difficult for the missiles to lock on. As the attack continues, the sheer number of missiles can make it difficult for Tenno to avoid taking damage. 
Once The One stops summoning missiles, relocating to the center of the arena will protect you from the remaining projectiles. However, this will also place you within melee range of The One.	✓
Cascading Fragmentation	A soft-enrage sequence that begins at the second phase. Applies all players with a unique debuff known as Cascading Fragmentation, which deals periodic damage and speeds up boss movement. Every 60 seconds the debuff will continuously increase by one stack until the Tenno or the boss is slain.	Simply defeat The Fragmented One before the Cascading Fragmentation kills you. 	✗
==Strategy==
===Fragmented Tide===
This phase is identical to the beginning of the standard Fragmented boss fights. The Tenno must defeat the Fragmented Tide in order for the boss to spawn.
===Phase 1===
The Fragmented One, like many other high-level bosses, has damage attenuation. This means that there is a maximum DPS amount that players can deal to The One. However, players can exploit the Murmur's innate weakness to Void Damage by subsuming , allowing their weapons to slightly surpass the boss's DPS cap.
Due to the extended length of this fight, players will likely encounter ammo shortages. This can be avoided by using Incarnon weapons, which can be charged by striking The Fragmented One's weak spot. The Torid's Incarnon form is particularly effective in this fight, as it can be charged by dealing non-precision damage.
While The Fragmented One cannot heal itself, Leech Eximus can restore it to full health at any time if they strike a Tenno or allied unit. Defeat these enemies as soon as they appear. It is not advised to bring a Kubrow, Kavat, or any other Companion that Leech Eximus can steal health from. Sentinels can be safely used in this fight without the risk of health leeching.
It's recommended for at least one member of your squad to bring Revenant, as while most of The Fragmented One's attacks will instantly dispel , the buff will still protect you from getting staggered. Being staggered by The One could result in your Warframe quickly succumbing to subsequent attacks.
Do not use your Operator to dodge The Fragmented One's attacks. While Void Mode can avoid all of The Fragmented One's attacks, your Warframe will be vulnerable to The One's debuffs. You will likely return to a Warframe with no energy, no shields, no active buffs, and locked abilities. 
===Phase 2===
During this phase, Murmur Fragments will begin to constantly spawn. Players should quickly dispatch these units to avoid getting overwhelmed.
At this phase of the fight, your highest priority must be your own survival. Do not engage The Fragmented One if you cannot do so safely, as most of the attacks introduced in this phase of the fight are difficult to counter without placing yourself at risk. 
The most dangerous attack introduced in this phase, the Void barrage, can be tanked using abilities like Volt's and Frost's .
==Rewards==
Upon defeating The Fragmented One, players will receive an Arcane from The Fragmented's loot table (, , , , , or ). In addition to this, The One will yield a single and a unique reward: the Manus Sumdali.
Defeating The Fragmented One with , , , , , or on Solo Mode will reward an accolade glyph depicting the Warframe used in the mission.
==Trivia==
*The Fragmented One has a unique "head", sculpted to resemble The Man in the Wall.