Mortal Shell 2 Proxima: Shell Unlock & Build

Mortal Shell 2 Proxima — full title Proxima the Broodseeker — is a playable Shell, not a boss. You unlock it at the Shattered Beacon in Blackridge Cliffs, in the Fainweald region, and its location is marked on your map for free once you finish the prologue. This guide covers the exact unlock route, Proxima's ability and passive, the full four-tier skill tree, and whether the Mortal Shell 2 Proxima shell deserves a slot in your rotation. Verified 2026-08-18.

Proxima is a female, knight-like warrior in a full suit of armor with a horned helmet, and her flavor line reads "Purpose gives the soul its shape." Among the shells revealed so far, she is the most aggression-first option: her signature hook drags enemies into melee range or yanks her across the arena to them.

Where to find the Mortal Shell 2 Proxima shell

After the prologue, speak with Zhirelle at Marrow Keep (or simply arrive at the keep) and the general area of Proxima's location is marked on your map automatically — no Glimpses required, unlike later shell reveals. The body lies on a table inside the Shattered Beacon in Blackridge Cliffs, Fainweald.

Mortal Shell 2 Proxima abilities: Biosampler and Grafted Armor

Slot	Name	Effect
Ability	Biosampler	Fires a hook from Proxima's left arm, pulling enemies into range or pulling Proxima to larger, immovable targets, then follows up with a strike that inflicts Lightning
Passive	Grafted Armor	Base 15 percent chance to mitigate incoming melee or ranged damage; mitigated hits are reduced by a base 50 percent and cannot stagger her

The hook defines her loop: close the gap instantly, convert Resolve into Lightning pressure, and let Grafted Armor soak the trades that an aggressive style inevitably takes.

Mortal Shell 2 Proxima skill tree

The Mortal Shell 2 Proxima skill tree has four tiers of three skills, unlocked through the Bonding system and leveled with shell points. Values below come from the Fextralife wiki as of 2026-08-17; a few entries contained obvious typos that we paraphrased, and numbers may shift between builds, so treat the in-game text as final.

Tier 1

Skill	Levels
Attunement	Biosampler costs 20, then 30, then 50 percent less Resolve
Exoshell	Extra mitigation chance while using Biosampler, while aiming, briefly after dodging, and while sprinting
Ampereon	Lightning mitigation, then Lightning immunity, then doubled Shock damage and radius

Tier 2

Skill	Levels
Biohazard	Biosampler damage up 15 and later 180 percent, plus extra Lightning stacks on hit
Reflection	Projectiles gain a 15 then 35 percent chance to deal no damage; nullified projectiles can be reflected back
Biohunter	Permanent damage increase per enemy sampled, scaling from 0.5 percent per sample (capped at 15) up to 1 percent per sample (capped at 30)

Tier 3

Skill	Levels
Seizure	Biosampler inflicts Stasis stacks, then adds splash and stagger damage
Shellshock	When Grafted Armor mitigates, Proxima gains Resolve, then inflicts Lightning stacks on the attacker
Collector	Chance to harvest Specimens from slain foes, up to a chance at double Specimens

Tier 4

Skill	Levels
Discharge	Biosampler knocks the target back and triggers a Lightning storm lasting 6 to 10 seconds
Fortress	Mitigated damage effectiveness increased by roughly 110 to 133 percent
Energize	On revive, Grafted Armor always mitigates for 8 seconds, releases a Lightning shockwave, or restores Resolve

Upgrading Proxima: Bonding and shell points

Unlocking the body is only half the job. Shell upgrades are handled back at Marrow Keep, not out in the world — beta coverage names Sester Genessa as the shell keeper there, while current guides point to Zhirelle the Shellkeeper for location reveals and Bonding, so talk to both NPCs when you visit. The two systems to know:

• Shell Bonding spends Glimpses, a rare resource earned mainly by cleansing beacons. Each bond tier raises your shell point capacity, improves how efficiently you revive the shell mid-fight after being knocked out of it, and unlocks playable memories of the shell's former life.
• Shell abilities are where you spend shell points on the skill tree above. Shell points come from leveling the Harbinger with Gloom at beacons, not from the individual shell, and testers confirm you can refund and reassign points at any time without penalty.

One open question from the beta: whether shell points are tracked per shell or drawn from a shared pool. Reviewers hoped for per-shell pools to avoid constant respeccing; verify in the current build before committing to a multi-shell roster.

How Proxima compares to the other shells

Mortal Shell 2 ships with eight unlockable shells plus Harros, the prologue-only tutorial shell. Proxima and Tiel are the two freebie reveals after the prologue; the rest must be hunted down, with Zhirelle selling map reveals for three to five Glimpses each. Here is the wider roster for context:

Shell	How to unlock (per current guides)
Tiel, the Acolyte	Interact with his body in a grave at Mushroom Village, Fainweald; auto-marked after the prologue
Proxima, the Broodseeker	Shattered Beacon, Blackridge Cliffs; auto-marked after the prologue
Eredrim, the Venerable	Defeat the boss that drops from the sky at the Citadel of Penance, west Fainweald
Gragu, the Insatiable	Start his quest at the One-Legged Wolf Tavern and bring him the Heart of Vatra
Smert, the Apostate	Fill the blood offering circles in western Fainweald
Lazlo, the Justiciar	Beat Vellen, High Lord of Mammon, in the underground cathedral in western Ruins of Mammon
Sariel, the Endless	Defeat him once in the wild, then again inside the Chamber of Becoming
Sester Genessa, the Wayward	Defeat Sester Secundus in the Ruins of Mammon and deliver the Sester's Censer

GamesRadar's verdict on the roster: Tiel is objectively the best early-to-mid game shell thanks to his speed and cloak, and Eredrim takes over in the mid-to-late game. Proxima sits comfortably behind them as the strongest zero-investment pickup, and her hook is unique — no other revealed shell manufactures its own gap-closer.

Is Mortal Shell 2 Proxima worth using?

For the early game, absolutely. Unlock guides describe Mortal Shell 2 Proxima as the first shell available after the prologue and say grabbing it makes the game significantly easier. GamesRadar's ranking puts Tiel as the best early-to-mid shell and Eredrim as the mid-to-late pick, but Proxima's zero-cost reveal and gap-closing hook make her the natural second body to build around.

For builds, remember that weapons are not tied to shells in this game, so pair her with whatever melee weapon suits you and lean into her identity: infusion Tarstones that stack Lightning, sidearms that keep pressure while you close distance, and the Biohunter line if you enjoy permanently scaling damage against sampled enemies. See our weapons page and the full shells roster for comparisons, and check the map page for the Fainweald route.

If you only take one shell detour after the prologue, make it Mortal Shell 2 Proxima: five minutes of travel for a body that carries the early game.