Daedric Sword

The Daedric Sword is a One-Handed weapon found in The Elder Scrolls V: Skyrim.

Locations
Both enchanted and unenchanted swords can be found in chests at higher levels, albeit rarely. An enchanted sword is a possible reward from Ulfric Stormcloak after completing the Civil War questline.

Smithing
The Daedric Sword requires a Smithing level of 90 and the Daedric Smithing perk to create. It is made at a blacksmith's forge with the following components:

Can be upgraded/tempered with Ebony Ingots at a grindstone.
 * 1 x Daedra Heart
 * 1 x Leather Strip
 * 2 x Ebony Ingots.

Atronach Forge
A Daedric Sword can also be crafted at the Atronach Forge, but it requires a Sigil Stone that can only be obtained via Conjuration Master Training, which in itself requires a Conjuration skill of 90.

The Atronach Forge requires the following components to create a Daedric Sword:
 * 1 x Sigil Stone
 * 1 x Daedra Heart
 * 1 x Ebony Sword
 * 1 x Centurion Dynamo Core
 * 1 x Black Soul Gem (empty or filled)

Trivia
The only sword with a higher base damage than the Daedric Sword is a Level 46+ Chillrend.

Bugs

 * Sometimes you are unable to upgrade it using smithing, even with the perk. (smithing 100+ may be required.)
 * When a fire spell (firebolt, flame cloak, flames, etc.) is equipped before equipping the Daedric Sword, there is a small chance that both will be used (in the left hand) at the same. The spell will not take charge time or use any magic. This only works with Daedric Swords that are enchanted with fire damage.