It can be socketed into Weapons and Shields. It can only be inserted into Inferno or Meta rune slots.
Berlam is one of the Runes available in Lords of the Fallen (LotF). Berlam is a rune that increases Inferno attribute scaling and reduces Radiance attribute scaling for weapons. For shields, it massively increases Inferno attribute and slightly reduces Radiance attribute. It has hidden lore related to Adyr and the restoration of order..
Weapon function: Increase Inferno attribute scaling. Reduce Radiance attribute scaling.
Shield function: Increase Inferno attribute massively. Reduce Radiance attribute slightly.
Lords of the Fallen Items