Mortal Shell 2: How to Beat the Rabid Grisha Pack Boss (Holding Cells)

The Rabid Grisha Pack is the cage-match boss at the bottom of the Holding Cells dungeon, and it throws two aggressive, bear-like Grishas at you at the same time. The danger is getting pinned between them, so the whole fight comes down to deleting one Grisha as quickly as possible and turning the encounter into a clean 1v1.

Quick answer: Enter the cage with the Iconoclast and a Level 2 Shrike Stone equipped, then immediately spam the Shrike Stone shockwave on the first Grisha while your summoned Grisha Remnant ally holds the second one. Kill the first boss fast, then dodge the red-circle attacks and riposte the survivor to finish the fight.

Rabid Grisha Pack location in the Holding Cells

The Rabid Grisha Pack waits at the very bottom of the Holding Cells dungeon. There is no Beacon close to the arena, so a death sends you on a long walk back. Prepare before you drop in and keep your healing charges topped up.

Travel to the Blackridge Pass Beacon and head southeast to Blackridge Hamlet. Look for the old well entrance there and drop inside to reach the dungeon.

Take the elevator down into the sewers. Along the way you need the Feeding Room Key, found in one of the shacks at the bottom of the pit, to open the locked door that leads to the boss.

Gameplay screen showing the E: EXIT WELL prompt at the Holding Cells well entrance — The well entrance in Blackridge Hamlet drops you into the Holding Cells dungeon. Cold Symmetry

Hug the right wall past the door to reach the cage arena. Dropping into the cage triggers the fight against both Rabid Grishas at once.

The build that makes the fight easy

The fastest path through this fight leans on burst damage and a distraction. The Iconoclast two-handed sword handles your melee, but the star of the setup is the Shrike Stone at Level 2. Its shockwave deals 150 slash damage for 30 Resolve, and it can be repeated as long as you keep your Resolve topped up.

Inventory menu showing the Weltcap mushroom with its Familiarity upgrade and equip options — The inventory setup, including the Weltcap and the Grisha Remnant summon item. Cold Symmetry

The other essential piece is the Grisha Remnant. Using this item summons a friendly Grisha that draws the aggression of one boss, letting you fight the encounter closer to one at a time. Keep it ready before you enter the cage.

Tarstones menu showing the Shrike Stone at Level 2 with its shockwave upgrade details — The Shrike Stone at Level 2, whose shockwave deals 150 slash damage for 30 Resolve. Cold Symmetry

Loadout piece	Role in the fight
Iconoclast (two-handed sword)	Main melee weapon for finishing the survivor
Shrike Stone (Level 2)	Shockwave burst, 150 slash damage per 30 Resolve
Grisha Remnant	Summons an ally that distracts one boss

How to beat the Rabid Grisha Pack

Drop into the cage and summon the Grisha Remnant right away. Its ally will pull one Grisha off you, so you can commit to the other without being surrounded.

Pick one Grisha and spam the Shrike Stone shockwave into it. Refill Resolve with melee hits between casts and keep the pressure on that single target until it drops. Focusing one enemy is the key, so avoid swapping targets unless you have to.

Gameplay screen showing an E: Recover Gloom prompt over a defeated Grisha — Downing the first Grisha quickly turns the cage match into a manageable 1v1. Cold Symmetry

With only one Grisha left, treat it as a straight duel. Watch for red-circle attacks, which are unblockable and must be dodged rather than parried. Punish the recovery frames after those swings.

Player striking the surviving Rabid Grisha with its health bar shown at the top of the screen — Dodge the red-circle attacks and build Resolve to close out the second Grisha. Cold Symmetry

Keep building Resolve and land the Shrike Stone shockwave whenever it is safe. Chip the last Grisha down between its lunges and fast melee strings, and it will fall without much risk once its partner is gone.

Tip: If you would rather not use the summon, the arena has two hanging cylinders above the cage. Shoot one with a sidearm while a Grisha stands beneath it to knock it down for heavy damage. There are only two, so wait for a good position before firing.

Alternative Shells for the pack

If you are underleveled or want a more defensive game plan, the choice of Shell changes how forgiving the fight feels. The pack shares an attack pattern between both Grishas, so once you read one, you can defend against both.

Shell	Why it helps
Eredrim	Durable and forgiving, pairs well with heavy weapons and Ripostes
Tiel	Perfect dodges build the enemy’s Break meter and let you escape when boxed in
Proxima	Upgraded Seizure can inflict Stasis and Lightning on both Grishas to slow them

Whatever Shell you bring, the winning idea stays the same. Break a Grisha for a Riposte, keep an equipped Grisha Remnant ready to trigger, and never let both bosses corner you at once.

Rewards and how to confirm the win

Beating both Grishas ends the encounter and drops your loot on the spot. You receive a Grisha Remnant, the Inflamed Clawstone Tarstone, and 1,132 Gloom. The Inflamed Clawstone infuses a weapon with Burn, adding fire damage to your hits.

Loot notification reading NEW TARSTONE ACQUIRED: INFLAMED CLAWSTONE with confirm and inspect options — The Inflamed Clawstone drop confirms the Rabid Grisha Pack is defeated. Cold Symmetry

You know the fight is over when both Grisha health bars are gone and the reward prompt appears. Grabbing the Inflamed Clawstone and your Gloom clears the Holding Cells and leaves you free to move on with a new fire-infusing Tarstone in hand.