Mortal Shell II Tarstones

Five Tarstone types, ten slots

Tarstones modify an equipped Shell, primary weapon or Sidearm. There are Support, Combat, Infusion, Ability and Fragile Tarstones. A loadout can hold four Shell-compatible stones plus two Combat, two Infusion and two Ability stones. A stone must match compatible equipment before it can be slotted.

Stone	Slot	Level 1 effect	Pickup
Devout Stone	Shell Support	+50% Resolve from melee attacks	behind the Sester’s Abbey gate
Shattering Stone	Weapon Support	+150% melee Stagger Damage	Collapsed Mines chest
Duality Stone	Weapon Combat	first light attack strikes twice	Ravaged Tomb chest
Wounding Stone	Weapon Combat	2 Perforation stacks per melee hit	chest south of Mushroom Village
Voltaic Crown	Sidearm Infusion	30 Resolve for Lightning on 4 attacks	Nochtean Gate boss reward
Egon’s Stone	Shell Fragile	dungeon-entrance revive on death	Merrick or dungeon/enemy drops

Growth and breakable stones

Tarstones gain experience while equipped as you kill enemies. Bring Etching Needles to Franz at the Marrow Keep Tarforge to unlock their upgrades; coins pay for the next level once the stone has enough experience. Most stones improve across four levels.

Fragile Tarstones use durability instead. Egon’s Stone has three uses and breaks after activating its revive effect; it prevents the Gloom loss from that death and grants a Tarcore. Glimpse Stone loses durability as enemies die, then breaks into three Glimpses and a Tarcore. Use Fragile stones when their break reward or emergency effect is worth the slot.