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How to Get Duality Stone and Effects | Mortal Shell 2

Last Updated: August 24, 2026 at 1:39 PM
Table of Contents

Duality Stone Overview

Duality Stone
Duality Stone
Tarstone TypeCombat
Compatible Weapon• Axe & Dagger
• Axatana

How to Get Duality Stone

AreaMap
area
map
LocationRavaged Tomb
How to GetInside a chest.

Duality Stone Effects

LevelEffect
1Your Weapon light attack combo strikes twice.
2First Attack Only.
3First and Second attacks
4All Attacks

How to Upgrade Tarstones

Franz

Every Tarstone can level up to 4 times, growing stronger or shifting into a new effect. To upgrade, give Franz the Etching Needle: Allows players to enhance their Tarstones when they give it to Franz at the Marrow Keep. Quest Item.

Level 2 upgrades cost coins, but you'll also need enough experience first. Just equip a Tarstone and rack up kills to earn EXP toward its next level.

Where to Find the Etching Needle

Find the Etching Needle inside a chest just before the boss fight against the Magdalena, Lady of the Woods. Past the Tarblighted Shepherd where you meet Ruk, turn right to spot it.

Related Guides

List of Tarstones

Tarstones

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