Ashina Armory: Every Weapon We Carry, Explained

Four Sekiro replicas fill BlacksmithSONG's Ashina Armory — two Mortal Blades, Wolf's katana Kusabimaru, and the poison-rust Prosthetic Tool Sabimaru, 18–26cm (7.1–10.2in), all $19.99 without a display stand, shot in our own studio. Sabimaru brings a shorter, solid-feeling blade to a lineup previously clustered around 25–26cm. Fan-made and unofficial — not affiliated with, endorsed by, or licensed by FromSoftware.

New to the Armory and not sure where to start? Black Mortal Blade is the one to lead with — tied for longest at 26cm (10.2in), the heaviest of the four at 70g (2.5oz), and the only one you can never actually equip in the game itself. Kusabimaru is the quieter pick: the sword you actually carry for the entire story, a Hirata family heirloom, and the lightest piece on the shelf at 53g (1.9oz). For the most compact option, Sabimaru packs 66g (2.3oz) into 18cm (7.1in), with its own scabbard.

The piece in this story

Black Mortal Blade Replica – 26cm Die-Cast Metal See sizes & stand options →

Every Weapon in the Armory, By Type

All four pieces are die-cast zinc alloy, cast blunt, recommended for ages 14+. Lengths, weights and prices below are pulled straight from each product page; prices are for the options without a display stand. Deep-dive write-ups for individual pieces aren't live yet; this table will grow a Read More column as they are.

Shop the Armory by Type, Size, or Budget

By type. All four currently live on the same shelf: Anime & Game Katana Replicas. That's a bit of a catch-all — Kusabimaru is a plain katana, single-edged, while both Mortal Blades are odachi in name only: the game calls them that, but the blades themselves run double-edged, which isn't how an odachi is supposed to be built. Sabimaru is a Prosthetic Tool in the game, represented here as a stand-alone display blade with its own scabbard rather than an arm-mounted mechanism.

By size. The lineup now spans 18–26cm (7.1–10.2in), an 8cm spread. Sabimaru is the shortest at 18cm (7.1in); Red Mortal Blade measures 25cm (9.8in); Kusabimaru and Black Mortal Blade are tied for longest at 26cm (10.2in). Weight still runs from 53g up to 70g. At 66g, Sabimaru is 8cm shorter than Kusabimaru yet 13g heavier, so the smallest piece isn't the lightest.

By budget. All four start at $19.99 without a display stand. Each replica listed here comes in one size; display-stand options cost extra. Sabimaru offers a Small Stand (+$2), Large Stand (+$3) or Vertical Stand (+$4).

Two Mortal Blades, Wolf's Katana, and a Prosthetic Blade

A gift from a boy who calls you "wolf." Kusabimaru is the sword Kuro — the Divine Heir — gives to the shinobi Wolf, and it's an heirloom of the Hirata family, a branch house of Ashina itself. It's the blade you carry from the game's opening hours through its ending, and its name breaks down cleanly: kusabi (wedge) plus maru, a suffix common to Japanese men's names of the era.

Twins, and only one of them is yours. Somewhere in Ashina there are two Mortal Blades — one red, one black — made to permanently kill things that keep coming back. The red one, Gracious Tears, is handed to Wolf inside the sanctum of Senpou Temple, after the Folding Screen Monkeys are dealt with. It's the blade that finally lets you put down enemies who'd otherwise just get back up.

The black one you're never allowed to touch. Kaimon — "Open Gate" — is the crimson blade's twin, and the game is explicit about it: the item text says outright that it's unusable by the player. Genichiro wields it in the final confrontation; Owl wields it in the Shura ending. Both are moments where the black blade is doing something to someone else, never something you're doing yourself. That's the whole appeal of owning one — it's the only way to actually hold a weapon the story never lets you touch.

Odachi in name, not quite in shape. Both Mortal Blades are officially described as odachi — a traditionally single-edged, oversized blade — but the games render them with an edge running down both sides. Our replicas match what's actually on screen rather than what the word "odachi" technically implies. Call it an honest inconsistency baked into the source material, not a mistake on our end.

The blade on Wolf's other arm. Sabimaru is a poison-rusted Prosthetic Tool found in Ashina Castle, used for quick slashes alongside the katana. Our unofficial fan-art take turns it into an 18cm (7.1in), 66g (2.3oz) stand-alone display blade: green-gradient finish, dark-red scabbard, and brass-toned fittings. It comes with its own scabbard, not a prosthetic-arm attachment.

What These Replicas Are, and Aren't

All four pieces are die-cast zinc alloy, cast blunt with no functional edge, and recommended for ages 14+. Listed weights across the lineup run from 53g (1.9oz) up to 70g (2.5oz) — see the table above for each individual piece. Every photo on our product pages is ours — shot in our own studio, of the exact piece we ship — with no CGI and no renders. Fan-made and unofficial — not affiliated with, endorsed by, or licensed by FromSoftware. More on how we shoot and pack things on the about page.

Free worldwide shipping with tracking; a ~10-day median delivery (150+ tracked orders), up to 3-4 weeks if customs holds it. Payment options are shown at checkout, and every order carries a 30-day money-back guarantee.

The Sekiro Replica FAQ

Is this officially licensed by FromSoftware?

No. Fan-made and unofficial — not affiliated with, endorsed by, or licensed by FromSoftware, across all four pieces.

Are any of the four blades sharp?

No. Every edge across all four pieces is cast blunt straight from the mold. Display collectibles for ages 14+, not functional weapons.

Can you actually get the Black Mortal Blade in the game?

No. The item description says flatly that it's unusable by the player — it only ever appears in Genichiro's hands during the final battle and in Owl's during the Shura ending. A replica is the only way to actually hold it.

What's the difference between the two Mortal Blades?

Color and ownership. They're twins — one red, one black — and the story only ever lets you carry the red one, Gracious Tears. The black one, Kaimon, stays in someone else's grip the entire game.

Which piece is the heaviest, and which is the lightest?

Black Mortal Blade is the heaviest at 70g (2.5oz); Kusabimaru is the lightest at 53g (1.9oz) despite being tied for the longest piece in the lineup at 26cm (10.2in). Sabimaru is the shortest at 18cm (7.1in), but weighs 66g (2.3oz), making it 13g heavier than Kusabimaru.

Is Sabimaru a katana or a Prosthetic Tool?

In the game it's a Prosthetic Tool used alongside Wolf's katana. Our replica is a stand-alone, cast-blunt display blade with its own scabbard; it is not a functional prosthetic-arm attachment.

How does shipping and payment work?

Free worldwide shipping with tracking, and every order carries a 30-day money-back guarantee. Payment options are shown at checkout.

That's the Ashina Armory: four replicas, from Wolf's katana and both Mortal Blades to Sabimaru, the compact poison-rust blade. Browse everything together in the Ashina Armory. If a weapon nobody's allowed to use is exactly the kind of detail that gets you, the Monkey King's Armory has its own honest surprise waiting in the lineup. And if you'd rather trade Ashina's mountainsides for the Grand Line, the Grand Line Katana Vault carries nine blades from a very different kind of swordsman.