Obsidian Hammer at a glance

Use Obsidian Hammer when you want single-hit stagger and guard pressure. Its listed damage identity is crushing melee; that label describes the practical rhythm, not a fixed damage number that would become stale after balancing changes.

TypeWeapon
RegionMammon
Combat rolesingle-hit stagger and guard pressure

Primary weapons and sidearms solve different problems. A primary weapon carries the normal exchange and helps restore Resolve through successful attacks. A sidearm consumes Resolve for a ranged or specialist action. Compare the opportunity cost before calling one item stronger: a powerful shot is not available when the meter is empty.

How to get Obsidian Hammer

Destination: the Obsidianite Mines west of the Outskirts of Mammon. Activate a nearby Beacon, clear enough space to read the final landmark, and confirm that the item name matches before leaving the area.

  1. Travel west from the Outskirts of Mammon to the quarry and large pool.
  2. Drop into the pool, enter the mines and descend the chasm by landing on the ledges.
  3. Defeat the Prophet of Profane Infinities at the bottom to receive the hammer.

If a gate or interaction does not respond, review the most recent key item, dungeon completion and traversal ability rather than assuming the route is broken. The current guide gives the shortest verified landmark chain without inventing a universal boss requirement where the consulted sources do not state one.

Moveset and best use

The hammer trades speed for posture damage. A single protected heavy swing is more valuable than forcing a full combo into an uncertain opening.

Test the neutral light string, heavy opener, sprinting attack and post-dodge attack separately. Record which animation gives the fastest recovery and which carries the most stagger risk. The goal is to leave the practice area with one low-risk punish and one high-commitment option—not to memorize every branch before using the weapon in a real route.

Harden can be activated during many committed melee animations, but the correct timing depends on the attack and the enemy's contact point. Begin the swing, Harden before impact, and let the stored animation finish only after the hit has bounced. Sidearms instead need a safe aiming or lock-on window; create that window first.

Upgrade and infusion priorities

Use stagger, critical-punish or leech effects that scale the value of each connection rather than relying on many rapid hits.

Before spending a rare material, compare the in-game tooltip against the current game version. Patch adjustments can change scaling, status buildup or compatibility. Upgrade the weapon because it supports a repeated combat decision, not because an older tier list gives it a letter grade. A reliable +8 tool you understand may outperform a newly acquired specialist at the same point in the campaign.

Use a controlled test: attack the same enemy from a rested Beacon, note the number of clean contacts and the stagger point, apply one change, then repeat. Status effects need their own test because buildup, resistance and duration are not the same as direct hit damage.

Recommended Shell pairings

break and stagger pressure

Eredrim, the Venerable

A heavily armored Shell built to interrupt enemy rhythm and create long punish windows.

Open Shell guide →attrition and exploration sustain

Gragu, the Insatiable

A bruiser whose enemy-fed healing loop is strongest on long routes full of regular fights.

Open Shell guide →control and pursuit

Proxima, the Broodseeker

An aggressive hunter who closes distance, isolates targets and softens mistakes with grafted armor.

Open Shell guide →

These pairings are practical starting points. They connect the weapon's animation rhythm to a Shell's defensive and resource loop. They are not proof that other Shells cannot use the item, and they do not replace testing with your current bond upgrades.

Combat plan and mistakes to avoid

Approach with the shortest reliable attack, watch the enemy's recovery, and commit to the longer option only after the pattern is confirmed. Keep enough stamina or space to exit. When using a sidearm, decide whether the shot is an interrupt, a finisher or a status setup before spending Resolve.

  • Do not upgrade immediately after pickup; use the full basic moveset on ordinary enemies first.
  • Do not combine an unfamiliar Shell, infusion and weapon in the same boss attempt.
  • Do not judge a heavy weapon from one missed swing; learn the Harden timing inside its commitment.
  • Do not fire a sidearm into an enemy that is already leaving the line of sight.

Obsidian Hammer is successful when it makes the next safe decision obvious. If you spend more attention fighting the weapon's recovery than reading the enemy, switch to a simpler moveset and return later.