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How to Get Ironpiercer's Stone and Effects | Mortal Shell 2

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

Ironpiercer's Stone Overview

Ironpiercer's Stone
Ironpiercer's Stone
Tarstone TypeCombat
Compatible Weapon• Forgotten Crossbow
• Naylshotte
• Salvaged Trebuchaxe
• Caged Hystrix
• Ballistazooka

How to Get Ironpiercer's Stone

AreaMap
area
map
LocationPrisoner's Domain Gate
How to GetInside a chest, located within the Slumwater Drain Beacon.

Ironpiercer's Stone Effects

LevelEffect
1Projectile Pierce through Enemies.
2Projectile pierce up to 3 targets before stopping.
3Projectile pierce up to 4 targets before stopping.
4Projectile pierce up to 5 targets before stopping.

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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