Frostmourne Sword Lore: Arthas and the Lich King's Blade

Frostmourne is the Lich King's runeblade in World of Warcraft: a two-handed sword that shatters and imprisons the souls of those it strikes, taken up by Arthas Menethil in the frozen wastes of Northrend.

So how does a sword no player has ever looted become one of the most talked-about blades in Azeroth? It comes down to who was holding it. Ours, for the record, is 30 cm (11.8 in) of die-cast zinc alloy, with a listed weight of 227 g (8.0 oz).

The piece in this story

Frostmourne Replica – 30cm Die-Cast Metal Sword See sizes & stand options →

What Is the Frostmourne Sword?

Frostmourne is a runeblade — a two-handed longsword etched with runes — and the lore files it as a mourneblade. Its defining power is what it does to souls: it shatters them, holds them inside the steel, and turns the living into undead. The inscription where it waited promised endless power to whoever took it up, with a warning that the spirit would pay for it. That bargain is the whole story of the sword.

Where Does Frostmourne Come From in World of Warcraft?

Ner'zhul, the Lich King at the time, sent the blade out from the Frozen Throne, and Arthas Menethil claimed it on a desolate stretch of Northrend. Arthas later reached the Frozen Throne itself, merged with Ner'zhul and became the new Lich King — which is why "Frostmourne" and "Lich King" travel together in almost every search. The sword's end came at the hands of Tirion Fordring, who shattered it.

For every appearance in order, Warcraft Wiki's Frostmourne entry goes deeper than we can here.

Can You Actually Get Frostmourne in the Game?

No — Frostmourne has never been an item players can loot or equip. It's a lore object: you see it in the Lich King's hands and you fight the man carrying it, but it never lands in your bags. That's the quiet difference between Frostmourne and almost every other famous blade in the game.

Quick Facts: In the Game vs. On Your Desk

How Heavy Is a 30 cm Frostmourne?

Listed weight is 227 g (8.0 oz). At 30 cm (11.8 in) it's about as long as a standard 12-inch ruler, and the weight is the part photos don't show: dense zinc alloy that reads as metal the second you lift it, cool in the hand. Up close you get a silver blade with a blue rune channel, a gunmetal horned-skull guard and a brown wrapped grip, and the edges are cast blunt. Our product page lists it at 1:6 — at that scale, the full-size blade would run about 1.8 m (5.9 ft).

If that heft is the draw, the 30cm Frostmourne replica comes bare or with a small, large or vertical stand — the vertical one lifts the skull guard up to eye level.

Frostmourne, Corrupted Ashbringer or Shadowmourne?

Corrupted Ashbringer is the closest match on the shelf: the same 30 cm (11.8 in), but heavier at 297 g (10.5 oz). Its story runs the other way. Corrupted Ashbringer was an epic two-handed sword you could loot in Naxxramas until patch 3.0.2 removed it, and it's one of the game's talking weapons — equip it and it presses its will on you. One blade players lost; the other they never had. Go with the Corrupted Ashbringer replica if you want the heaviest piece in the lineup.

Shadowmourne is probably what you're after if you searched for a "Frostmourne axe." It's a legendary two-handed axe, earned through a long legendary quest chain open only to warriors, paladins and death knights; in the game it gathers soul fragments until Chaos Bane fires. Ours is 18 cm (7.1 in) and 116 g (4.1 oz), smaller and lighter, with a skull motif that echoes Frostmourne's guard. The 18cm Shadowmourne axe replica makes a natural second piece beside it.

Want every Azeroth piece side by side? The Azeroth Armory size-and-weight guide lays out lengths, weights and stands for the whole lineup. To shop, head to the Azeroth Armory, or browse every two-hander in Metal Greatsword Replicas.

Frostmourne FAQ

Is Frostmourne an axe?

No — Frostmourne is a two-handed sword, a runeblade. The skull-adorned axe from the same chapter of the story is Shadowmourne, a legendary two-handed axe.

Who carried Frostmourne?

Arthas Menethil is its best-known wielder. Ner'zhul, then the Lich King, sent it out from the Frozen Throne; Arthas claimed it in Northrend, and later merged with Ner'zhul to become the Lich King himself.

Who shattered Frostmourne?

Tirion Fordring. The sword that held so many souls ended up broken at his hands.

How big is your Frostmourne, and how much does it weigh?

It's 30 cm (11.8 in) long. Listed weight is 227 g (8.0 oz), solid die-cast zinc alloy from tip to pommel.

Is it a functional sword?

No. It's a display piece with cast-blunt edges, made to sit on a shelf or a stand. Recommended for ages 14+.

Is this a Blizzard product?

No. Fan-made and unofficial — not affiliated with, endorsed by, or licensed by any game, anime, or film company.

Straight Talk Before You Buy

This is a 30 cm (11.8 in) display collectible, not a functional weapon: the edges are cast blunt. Recommended for ages 14+. Fan-made and unofficial — not affiliated with, endorsed by, or licensed by Blizzard Entertainment. 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. Free worldwide shipping with tracking, a foam-lined gift box, and a 30-day money-back guarantee. Delivery times are on our shipping page. Payment options are shown at checkout.

Written by BlacksmithSONG, an independent two-person studio that photographs every die-cast zinc alloy weapon collectible in-house, with our flagship collections shot inside miniature dioramas we model, 3D-print and hand-paint ourselves.