Mortal Shell II — Obsidian Hammer Location (Obsidianite Mines)

Published 2026-09-174 min read

The Obsidian Hammer is Mortal Shell II's posture-breaking monster: the highest single-hit impact in the game and a shockwave heavy attack. Grab it in the Obsidianite Mines after the Prophet boss — full route inside.

The Obsidian Hammer is what happens when a weapon stops asking politely. A two-handed chunk of obsidianite with the highest single-hit impact and posture damage in Mortal Shell II, its heavy attacks crush enemy stance outright and force executions.

The Obsidian Hammer in Mortal Shell II
Highest impact in the game — every heavy swing threatens a posture break.

Where to find it

  1. From the Outskirts of Mammon Beacon, head south-west along the road.
  2. Cross the wooden bridge into the scaffold-caked area known as the Deserted Slums.
  3. In the center of the slums, drop down to the lower level where miners are working the rock.
  4. The entrance to the Obsidianite Mines dungeon sits at the south-west side of that pit.
  5. Push through to the end of the dungeon and defeat the mini-boss — the Prophet — and the hammer comes to you automatically.

What it plays like

  • Posture destruction. The whole identity of the weapon: heavy attacks collapse enemy stance and open executions against almost anything, including armored elites.
  • A shockwave heavy. The dashing heavy attack is a massive downward slam with area tremor — superb against large bosses and heavily armored foes, and it catches groups too.
  • Crowds fear it. Few weapons clear a packed room as safely: one well-placed slam staggers everything nearby, and staggered enemies stay honest while you finish them one by one.

It arrives mid-to-late game, which suits its weight class — this is the tool you bring to the fights that were giving you trouble.

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