Overview
Mortal Shell 2 strips out the stamina bar and replaces it with a resource called Resolve. Offense and defense both run through a small set of tools — light and heavy attacks, sprint attacks, guard, parry, and harden — with your defensive option determined by which Seal you equip. This guide explains how the system fits together, based on post-launch guide coverage and the official website's confirmation that combat is "unrestricted by stamina."
Resolve — the No-Stamina Resource
There is no stamina bar in Mortal Shell 2. You can attack freely — chain light attacks, mix in heavies, sprint into an attack — and nothing drains your stamina. The trade-off is Resolve, a meter above your health that fuels almost everything beyond basic swings:
- Firing your sidearm, the ranged secondary weapon.
- Activating your Shell's special ability (for example, Tiel's invisibility, which lets you strike from stealth).
- Additional Shell-specific combat skills, such as aerial slam attacks.
Resolve is earned by staying on the offensive: hitting enemies, killing enemies, and successfully guarding, parrying, or hardening all fill the meter quickly. The design deliberately rewards aggression — stop attacking and your options shrink. If an enemy lets you keep the pressure on, you can literally never stop hammering them.
Guard, Parry & Harden
Your defensive tool is tied to the Seal you have equipped. Three of the four Seals cover the classic defensive trio:
- Untarnished Seal (default) — Guard. Hold the block button to negate incoming damage. Block just before impact for a Perfect Guard, which deals a small amount of Break Damage to the enemy. Guard has its own meter (renamed Guard Meter in the Day One patch, now a standalone weapon stat) — run it dry and you are staggered; it refills after you release. Guard is forgiving (better to block early than late), but it cannot cancel a swing, so you cannot abort an attack into a block.
- Vatra's Seal — Harden. Turn to stone to absorb a single hit: while hardened you take no damage and the attacker is staggered. Time it precisely for a Perfect Harden, which deals Break Damage and instantly refills the harden cooldown bar — letting you chain Perfect Hardens back-to-back against bosses and elites. Harden also acts as an animation cancel and can be held indefinitely in theory. The Day One patch reduced the poise damage Harden deals but enabled using it during charged attacks on controller. You obtain Vatra's Seal from Harros's body after defeating the prologue boss Tar Golem, before entering Marrow Keep.
- Infinite Seal — Parry. A pure parry with a tighter timing window than a Perfect Guard. It deals more Break Damage and breaks elite enemies much faster, and you can parry straight out of attack animations. The catch: miss the parry and you take the full hit — there is no fallback block. Worst case, dodge out of the way.
Fill an enemy's Break bar with Perfect Guards, Perfect Hardens, or parries, and you can follow up with a Riposte (execution) for heavy damage.
Red attacks. Unblockable sweeps, grabs, and impales cannot be guarded, hardened, or parried — when you see a red attack, dodge. This is the single most important defensive rule in the game.
Seals
There are four Seals in total, and you start with the Untarnished Seal before the prologue boss. Each one changes your defensive rhythm:
| Seal | Defense | Perfect timing | Extra effect |
|---|---|---|---|
| Untarnished Seal | Guard | Perfect Guard | Break Damage |
| Vatra's Seal | Harden | Perfect Harden | Break Damage; instantly refills the harden cooldown |
| Infinite Seal | Parry | Precise parry | Higher Break Damage; breaks elites much faster |
| Slayer Seal | Sidearm-focused | Stylish executions | Restores HP / Resolve on executions |
The Slayer Seal trades a defensive option for offense: your sidearm deals Break Damage and flashy executions restore health and Resolve. Several guides warn that the Slayer Seal — along with certain assist equipment — disables achievements, a critical detail if you are chasing 100% completion. As a rule of thumb, the Infinite Seal suits duels with telegraphed bosses, while Vatra's Seal handles fights with adds attacking from multiple directions.
Tarstones
Tarstones are socketable upgrade items for weapons and Shells. They come in four types:
- Support: passive bonuses that do not depend on the weapon or sidearm.
- Combat: trigger on hits or shots.
- Infusion: hold a button to temporarily enchant your weapon (poison, curse, frost) at the cost of Resolve.
- Ability: press a button to unleash a powerful skill that costs Resolve.
Equip capacity is capped at 10 total: 4 Shell-compatible slots, plus 2 each for Combat, Infusion, and Ability. Most Combat, Infusion, and Ability Tarstones are restricted to specific weapons or sidearms.
Tarstones upgrade up to level 4. Use the Tarforge, an ancient machine in Marrow Keep, to upgrade them — you first hand Franz the Etching Needle to unlock upgrading (level 2 yields a Tarcore; level 3 costs 150 Gold plus 6 Tarcore, net 3 after refunds). There are 73 Tarstones in the game, confirmed by post-launch coverage (AllThings.How and PowerPyx-derived guides); your menu shows two extra empty slots on purpose. See the collectibles guide for the full count and notes.