What to do with · Valheim 1.0.17
What to do with Mould: Intricate Key
Filled with the right material, this mould will create a powerful key.
It goes into Cast: Intricate Key.
Stacks to 10Weight 1Full Mould: Intricate Key page →
Craft with it (1)
Earliest first, by the biome where everything the recipe needs can first be had.
What Hugin says
Moulds can yield fascinating results! But it is not enough to merely fill them with materials – they also need to be hardened with the help of extreme temperatures...
Hugin's tip “You have found a mould!”, shown when you first pick it up (Player.AddItem).
Last resort: the Obliterator
Obliteratorturns any 10 items (stacks counted one by one) into 1 
Coal; the rest is lost.
Incinerator.Incinerate in the game code.
Where to get more Mould: Intricate Key
Dropped byElaking20%Deep North
Dropped byEyeless One50%Deep North- Broken fromPile of Rubble
- Broken fromWardrobe Shaft
Questions
›What is Mould: Intricate Key used for in Valheim?
It goes into Cast: Intricate Key.
›Can you sell Mould: Intricate Key in Valheim?
No. Traders only buy items with a trade value, and Mould: Intricate Key has none. The 9 that do: Amber, Amber Pearl, Ancient Coin, Draumyx, Grimvarn, Solryth, Veydris, Ruby and Silver Necklace.
›Can Mould: Intricate Key go through a portal?
Yes, Mould: Intricate Key can be carried through a portal.
›Where do you get Mould: Intricate Key?
Elaking, Eyeless One, Pile of Rubble. Every source is on the Mould: Intricate Key page.
Source: recipes, building pieces, stations, altars, traders and the Obliterator in the files of Valheim 1.0.17 (2026-10-05), prefab MoldKeys.