Mortal Shell 2 How to Parry — Infinite Seal Guide
Updated August 23, 2026 · Checked for the current launch build
Official promotional screenshot: Steam / Cold Symmetry / Playstack
How parrying works
Parrying is a Seal action, not a default button. Mortal Shell II has no stamina bar, so defense is about Break: successful Perfect Guards, parries, and Hardens fill the enemy stun meter. A full Break lets you press attack for a Riposte.
- Untarnished Seal: hold to block; time a Perfect Guard to deal Break damage. Missing the perfect window still blocks, but fills your Guard meter if you hold block too long.
- Infinite Seal: tap on impact for a parry. Higher Break reward, smaller window, no long hold-block safety net.
- Red attacks: unparryable. Roll or Harden instead of guessing.
How to unlock the Infinite Seal
- Finish the prologue, reach Marrow Keep, and rest at the hub Beacon.
- From the Marrow Keep Beacon, enter the cavern arena with white stone coffins and candles.
- Speak to Sester Genessa and complete her Perfect Guard training — she requires several successful guards before she breaks.
- Riposte her to receive the Infinite Seal, then equip it from the equipment menu.
You can switch back to the Untarnished Seal at any time. Achievement-sensitive players should not equip the Slayer Seal while practicing; community guides report it disables achievements on the current save.
Practical parry tips
| Situation | What to do |
|---|---|
| Learning a new boss | Keep Untarnished Seal until the string is readable, then swap to Infinite Seal for extra Break. |
| Multi-hit sword strings | Parry the first readable hit, then be ready for a longer string than three attacks — Nameless Captive is the textbook example. |
| Windmill / headspin | For a normal clear, back out. Only stay in if you are hunting Peter's Perfect Parry with Untarnished Seal. |
| After a successful parry | Take one or two hits, not a full combo. Riposte when Break fills; greed is what kills. |
| Balance Patch 1 | Guard can now be used while walking. That helps reposition during Perfect Guard, not during Infinite Seal taps. |
Official gameplay showing posture breaks and Seal defense
Official Playstack gameplay reveal. Seal names and training steps below are community-verified against launch guides.
Related guides
All Seals · How to Harden · Combat basics · Nameless Captive parry fight