Forty-seven hammers, two slots
The Daedalus Hammer pool spans 47 distinct rewards split across the six Nocturnal Arms. Each weapon carries its own subset — a Witch’s Staff hammer never appears on the Sister Blades, and a Moonstone Axe pick never shows up on the Black Coat.
You can hold two.
A third slot exists, but only if you buy the Anvil of Fates from Charon. You can also buy a hammer outright from Charon for 200 Gold Crowns, which is worth budgeting for when your first offer is bad.
And the constraint most players miss:
Some hammers are mutually exclusive at a base-mechanic level. Any hammer that rewrites your Attack locks out a second Attack-rewriting option later in the run. So the order you collect them in matters as much as which ones you take — and a run that grabs the wrong hammer in Erebus can quietly cap its damage ceiling for the rest of the night.
If you want to chase a specific pick, equip the Lambent Plume keepsake, which rerolls the offered set once per appearance.
The two rules
Never skip a hammer entirely. Even a B-tier upgrade multiplies with your existing boon stack and is always a net positive. The decision is which, not whether.
Before you take a playstyle-changer, check that your current boons still fire on the new attack pattern. A hammer that rewrites how you attack can quietly orphan the boons you already paid for.
Witch’s Staff
| Tier | Hammer | Effect |
|---|---|---|
| S | Cross Cataclysm | Omega Special fires in 4 cardinal directions, +40% damage, no extra Magick |
| S | Extending Wallop | +100% damage to distant enemies, extended attack range |
| A | Aetheric Moonburst | Omega Special gains a Power Shot for +50% damage and restores 20 Magick |
| A | Shimmering Moonshot | Special projectiles bounce between enemies with scaling damage per bounce |
| B | Double Moonshot | Two auto-tracking projectiles, -40% range |
| Skip | Marauder Wallop | Faster Attack strikes, Omega Attack disabled |
Cross Cataclysm’s real value is the boon interaction: each of the four beams procs your Omega Special boon independently, so a single Omega activation applies four boon applications instead of one. Pair it with Zeus, Poseidon or Demeter.
The best two-hammer combo on the weapon is Cross Cataclysm plus Extending Wallop — the Omega four-beams every cluster while your normal attacks deal double damage to anything beyond melee range, which on the Staff is most enemies.
Marauder Wallop is the trap. It reads as a straight upgrade and it deletes your highest-damage ability.
One naming note: Extending Wallop is listed at +100% to distant enemies by one source and +50% by another. Take whichever your game shows.
Sister Blades
| Tier | Hammer | Effect |
|---|---|---|
| S | Dancing Knives | Specials deal more damage and each hit bounces to up to two more enemies |
| S | Spiral Knives | Specials +20% damage; Omega Special fires up to 16 shots in a circle around you |
| A | Volatile Array | Slots into Special-damage builds |
| A | Final Slice | The final combo hit deals +300% damage across a wider area |
| A | Skulking Slice | Hits from behind deal +200% damage |
| A | Explosive Ambush | Omega Attack covers a wider area and deals 4x damage, for 20 Magick |
| A | Melting Sickle | Special destroys 50% of a target’s Armour |
| Skip | Single-target boost hammers | The blades’ ceiling is crowd-clear breadth, not per-hit numbers |
Four sources, four answers on the S-tier pick — Dancing Knives, Spiral Knives, or the Final Slice / Skulking Slice / Explosive Ambush trio. Read them together and the principle is clearer than the ranking: whatever you take should add cleave or eliminate the need for precise positioning, because the blades have the shortest range of the six weapons.
Spiral Knives plus Aspect of Pan is specifically called out as an elite and Guardian killer.
Umbral Flames
| Tier | Hammer | Effect |
|---|---|---|
| S | Clean Coil / Clean Helix | Extends the Omega channel by 50%, or channels 20% faster for 2 less Magick |
| S | Sudden Burst | Windup +50% — sounds like a slow-down, actually packs more burn ticks per detonation |
| S | Furious Blaze | +200% burn on detonations |
| A | Triple Helix | For raw projectile count rather than the Omega path |
| A | Rising Coil | Specials grow larger and deal up to +25% damage the longer they are active |
| A | Sustained Spark | +20% move speed while charging Attacks |
| A | Melting Comet | Special fires straight and destroys 80% of enemy Armour |
| Skip | Any hammer that shrinks the Omega channel area | The payload depends on parking the channel inside a packed room |
The Moros Ghost-Detonation build wants Clean Coil, Sudden Burst and Furious Blaze specifically, and the order you find them in decides whether the run hits 1,000+ DPS bursts or stalls at 600.
Moonstone Axe
| Tier | Hammer | Effect |
|---|---|---|
| S | Psychic Whirlwind | Use Attacks and Specials while the Omega Attack is active |
| S | Giga Cleaver | Fire the Omega Special twice in a row for +15 Magick |
| A | Furious Whirlwind | Omega Attack channels faster and +60% move speed while active |
| A | Sudden Cleaver | Roughly 25% faster channeling on charged attacks |
| A | Empowering Guard | After blocking with your Special, +50% damage for 15 seconds |
| A | Concentrated Whirlwind | Each consecutive hit on the same target with the Omega Attack adds +2 power |
| A | Executioner’s Chop / Hell Splitter | Heavier single strikes; pair with percentage boons |
The axe is the slowest weapon in the roster and the hammer slot mostly exists to cut that tax. Psychic Whirlwind and Furious Whirlwind attack the problem directly — one frees you from the animation, the other lets you move at +60% while you are in it.
Argent Skull
| Tier | Hammer | Effect |
|---|---|---|
| S | Volatile Array | — |
| S | Colossus Driver | — |
| A | Bolstered Array | +2 skulls, so up to 5 shots before a reload |
| A | Possessed Array | Refunds the Magick cost of your Omega Attack |
| A | Twisting Crash | Omega Special contracts inward after its initial expansion |
Black Coat
| Tier | Hammer | Effect |
|---|---|---|
| S | Shimmering Rockets | Specials bounce toward extra foes, multiplying the missile spread |
| S | Siege Frame | Extends Attack reach; defensive padding on high-vow runs |
| A | Launcher Frame | Attacks striking foes give your Special a chance to fire automatically |
| A | Furious Rockets | Launches Specials faster |
| A | Reaper Frame | Adds Power and area to Attacks |
| A | World Collider | Boosts the fully charged Omega Attack blast |
Launcher Frame is the glue hammer — it lets you deal melee and missile damage at once, which suits the Coat’s hybrid identity better than committing to either half.
What to do with a bad offer
- Take it anyway. A B-tier hammer is still a net positive.
- Do not take a hammer that orphans your boons. A playstyle-changer that stops your Attack boon from firing is a downgrade dressed as an upgrade.
- Buy from Charon for 200 Gold Crowns if the room offer is bad and you can afford it.
- Carry the Lambent Plume when you are chasing one specific hammer, and use its single reroll on the appearance that matters.
- Hold the Anvil of Fates for a third slot if your first two are strong but the build has an obvious missing piece.
The short version
Two slots, forty-seven options, and the first pick can lock out the second. Take the one that removes your weapon’s biggest weakness, skip the one that deletes your best ability, and never walk past a hammer entirely.