| Name | Oathbreaker, obsidian blade of the Death Knight |
| Rarity | Legendary |
| Found in | The Old Forest |
| Damage | 6d3 (14.0 average) |
| Type | slash |
| Sheathable | Yes |
| Durability Threshold | Indestructible |
| Weight | 14 kgs |
| Str to Wield | 21 |
| Cost | 50000 copper |
| Material | hard |
| Indestructible | Yes |
| Flags | glow, magic, slashing, restricted_store |
| Affects | +2 damroll, +2 pummel damage |
| Sold in | Not sold |
| Lore | Once the oath-sword of a knight sworn to guard the living, this blade drank the weight of a broken vow until its steel turned to black glass. A cold flame that gives no light gutters along its edge, and the blade cannot be chipped, notched or broken. It is said that Azrael carries it still, so that no oath he swears again may ever be kept. |