The Forge of Potential, a single hidden forge in the Mountains (one of up to 10 candidate spots becomes real when you approach it). Spend one Idol of the item's tier to try to raise a weapon, tool or armor past level 4: 65% success, otherwise the item can be lost.
Names, numbers, icons and biome art are those of Valheim 1.0. Valheim is a game by Iron Gate; Vestigo is not affiliated with it.
Places, habitats and photos of creatures and places: Valheim Wiki (Fandom), under CC BY-SA 3.0 (the author of each photo shows when you hover it).
Deep North data (places, attacks, drop rates) checked against Valheim Wiki (weirdgloop), CC BY-NC-SA 3.0.