A single Daedalus Hammer can rewrite how your weapon plays, and every one of the six Nocturnal Arms draws from its own upgrade pool.
A Daedalus Hammer can turn a middling weapon into a build all by itself, changing how your attacks fire rather than just adding a number.
It is an Artifact you find during a run that upgrades your current weapon, and the wiki notes some upgrades are minor tweaks while others reshape the weapon entirely.
The catch is that every weapon has its own private pool of Hammer upgrades, so what you can roll on the Witch's Staff is nothing like what appears on the Moonstone Axe.
This guide covers how the Hammer works, the per-weapon pools for all six Nocturnal Arms, the Icarus trick that pushes a Hammer to Rank II, and how to choose the right upgrade.
an Artifact that upgrades your current weapon's attacks for one run.
an Icarus Invention can push one Hammer upgrade to Rank II for the night.The Daedalus Hammer is an Artifact that upgrades one of your weapon's specific attacks, and its effect lasts only for the current run.
According to the wiki it can appear in the first room of a run, drop as a room-clear reward, or more rarely be bought from Charon. You lose its effect on death like any run item, and Hammer offerings cannot be re-rolled, so the upgrade you are shown is the choice you get.
You can pick up more than one Hammer in a run and their effects stack, which is how a weapon snowballs into a full build. Some upgrades are mutually exclusive, though, so a Hammer that changes your Omega Attack may lock out another that also touches it. Reading the offering before you grab it matters.
Because offerings cannot be re-rolled, treat a Hammer door as a real decision, not a free pickup. If your build hinges on your Omega Cast, a Hammer that reworks your basic Attack may be worse than skipping it and hoping a Cast upgrade appears in the next room.
Each of the six Nocturnal Arms draws Hammer upgrades from its own dedicated pool, so a good Hammer for one weapon does not exist for another.
That means learning Hammers is really learning them weapon by weapon. The table below outlines what each weapon's pool tends to do, with the full upgrade lists living on each weapon's guide.
| Weapon | What its Hammers tend to do |
|---|---|
 Witch's Staff | Magick-hungry ranged caster; Hammers push its Omega Attack line burst, including Vampiric Cataclysm for a rare self-heal on kill. |
 Sister Blades | Fast dual daggers; Hammers reward the high hit-rate playstyle and backstab damage. |
 Moonstone Axe | Heavy, slow swings; Hammers add reach, cleave, and payoff on the charged Omega Attack. |
 Umbral Flames | Rapid ranged flames; Hammers lean into the high-frequency Omega Moves that trigger on every hit. |
 Argent Skull | Shotgun-style burst with reloads; Hammers reshape spread, ammo, and the recall throw. |
 Black Coat | Hex-and-shroud hybrid; Hammers amplify its area Omega Moves and defensive shroud. |
The Witch's Staff pool alone runs to more than a dozen upgrades, from Giga Moonburst reshaping its Cast to Vampiric Cataclysm bolting a self-heal onto its Omega Attack. Every weapon has this depth, which is why the same weapon can feel completely different run to run.
Icarus is the character most tied to Hammers, and his top Invention can push a Hammer upgrade to Rank II for the rest of the night.
Icarus offers Inventions rather than standard boons, chosen after he helps clear an area. His Ingenious Strike and Ingenious Flourish add three levels to your Attack or Special boon, while Explosive Intent and Hazard Boom bolt area damage onto your Omega Moves and Casts. The wiki specifies his best Invention upgrades a single Daedalus Hammer upgrade to Rank II, boosting that Hammer's effect for the whole night.
That Rank II boost is why a Hammer and an Icarus run pair so well. Land the Hammer that defines your build, then let Icarus double down on it. It also stacks with the flat damage from Hephaestus boons and weapon aspects, so a focused weapon build can reach absurd numbers by the Summit.
The best Hammer is the one that reinforces the move your build already leans on, not the one with the biggest number.
Start from your boons. If your damage flows through your Omega Cast, prioritize Hammers that touch the Cast; if you live on your Attack, take the Attack upgrades. A playstyle-shifting Hammer like a self-heal on kill or a reworked Omega Move is worth more than a flat damage bump, since it changes how the whole run feels.
In practice, grabbing every Hammer you see is a trap. A pickup that improves an attack you never use dilutes your options and can lock out a better upgrade through the mutual-exclusion rule. Take Hammers that serve the plan, and skip the ones that do not.
Pair the Hammer with your keepsake and boon plan from the first room. If you opened with a Cast-focused keepsake, a Cast Hammer in room one sets the entire run's direction, and Icarus later turning it Rank II can carry you to the final Guardian.
The Daedalus Hammer is an Artifact that upgrades one of your current weapon's attacks for the duration of a run. Some upgrades are minor tweaks and others reshape the weapon entirely. Its effect is lost on death, and Hammer offerings cannot be re-rolled.
A Hammer can appear in the first room of a run, drop as a room-clear reward, or more rarely be purchased from Charon's shop. You can pick up more than one in a run, and their effects stack, though some upgrades are mutually exclusive.
No. Each of the six Nocturnal Arms, the Witch's Staff, Sister Blades, Moonstone Axe, Umbral Flames, Argent Skull, and Black Coat, draws Hammer upgrades from its own separate pool. A good Hammer for one weapon does not exist for another.
Icarus is the source. He offers Inventions rather than standard boons, and the wiki specifies his best Invention upgrades a single Daedalus Hammer upgrade to Rank II, boosting that Hammer's effect for the rest of the night. It is the biggest single boost you can give a chosen Hammer.
Yes. You can pick up multiple Hammers in a single run and their effects stack, which is how a weapon snowballs into a full build. Watch for mutually exclusive upgrades, since taking one can permanently lock out another that touches the same move.
No. The wiki states Hammer offerings cannot be re-rolled, so the upgrade you are shown is the only option at that door. Because of this, treat each Hammer as a real decision and weigh it against skipping the room entirely if it does not fit your build.
It depends entirely on your weapon and build, since each weapon has its own pool. As a rule, the best Hammer is one that reinforces the attack your boons already lean on, and a playstyle-shifting upgrade like a self-heal on kill usually beats a flat damage bump as of patch v1.0.
No. Like boons and other run items, a Daedalus Hammer is run-specific and its effects are lost when you die or return to the Crossroads. Every run starts fresh, so you rebuild your Hammer choices from scratch each attempt.
Keep building out your Hades 2 knowledge with these next stops.
Game data and character art adapted from hades.fandom.com, used under CC BY-SA 3.0. Original content remains the property of the wiki contributors and Supergiant Games.